Line data Source code
1 : // tinyformat.h
2 : // Copyright (C) 2011, Chris Foster [chris42f (at) gmail (d0t) com]
3 : //
4 : // Boost Software License - Version 1.0
5 : //
6 : // Permission is hereby granted, free of charge, to any person or organization
7 : // obtaining a copy of the software and accompanying documentation covered by
8 : // this license (the "Software") to use, reproduce, display, distribute,
9 : // execute, and transmit the Software, and to prepare derivative works of the
10 : // Software, and to permit third-parties to whom the Software is furnished to
11 : // do so, all subject to the following:
12 : //
13 : // The copyright notices in the Software and this entire statement, including
14 : // the above license grant, this restriction and the following disclaimer,
15 : // must be included in all copies of the Software, in whole or in part, and
16 : // all derivative works of the Software, unless such copies or derivative
17 : // works are solely in the form of machine-executable object code generated by
18 : // a source language processor.
19 : //
20 : // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 : // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 : // FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
23 : // SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
24 : // FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
25 : // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
26 : // DEALINGS IN THE SOFTWARE.
27 :
28 : //------------------------------------------------------------------------------
29 : // Tinyformat: A minimal type safe printf replacement
30 : //
31 : // tinyformat.h is a type safe printf replacement library in a single C++
32 : // header file. Design goals include:
33 : //
34 : // * Type safety and extensibility for user defined types.
35 : // * C99 printf() compatibility, to the extent possible using std::ostream
36 : // * Simplicity and minimalism. A single header file to include and distribute
37 : // with your projects.
38 : // * Augment rather than replace the standard stream formatting mechanism
39 : // * C++98 support, with optional C++11 niceties
40 : //
41 : //
42 : // Main interface example usage
43 : // ----------------------------
44 : //
45 : // To print a date to std::cout:
46 : //
47 : // std::string weekday = "Wednesday";
48 : // const char* month = "July";
49 : // size_t day = 27;
50 : // long hour = 14;
51 : // int min = 44;
52 : //
53 : // tfm::printf("%s, %s %d, %.2d:%.2d\n", weekday, month, day, hour, min);
54 : //
55 : // The strange types here emphasize the type safety of the interface; it is
56 : // possible to print a std::string using the "%s" conversion, and a
57 : // size_t using the "%d" conversion. A similar result could be achieved
58 : // using either of the tfm::format() functions. One prints on a user provided
59 : // stream:
60 : //
61 : // tfm::format(std::cerr, "%s, %s %d, %.2d:%.2d\n",
62 : // weekday, month, day, hour, min);
63 : //
64 : // The other returns a std::string:
65 : //
66 : // std::string date = tfm::format("%s, %s %d, %.2d:%.2d\n",
67 : // weekday, month, day, hour, min);
68 : // std::cout << date;
69 : //
70 : // These are the three primary interface functions. There is also a
71 : // convenience function printfln() which appends a newline to the usual result
72 : // of printf() for super simple logging.
73 : //
74 : //
75 : // User defined format functions
76 : // -----------------------------
77 : //
78 : // Simulating variadic templates in C++98 is pretty painful since it requires
79 : // writing out the same function for each desired number of arguments. To make
80 : // this bearable tinyformat comes with a set of macros which are used
81 : // internally to generate the API, but which may also be used in user code.
82 : //
83 : // The three macros TINYFORMAT_ARGTYPES(n), TINYFORMAT_VARARGS(n) and
84 : // TINYFORMAT_PASSARGS(n) will generate a list of n argument types,
85 : // type/name pairs and argument names respectively when called with an integer
86 : // n between 1 and 16. We can use these to define a macro which generates the
87 : // desired user defined function with n arguments. To generate all 16 user
88 : // defined function bodies, use the macro TINYFORMAT_FOREACH_ARGNUM. For an
89 : // example, see the implementation of printf() at the end of the source file.
90 : //
91 : // Sometimes it's useful to be able to pass a list of format arguments through
92 : // to a non-template function. The FormatList class is provided as a way to do
93 : // this by storing the argument list in a type-opaque way. Continuing the
94 : // example from above, we construct a FormatList using makeFormatList():
95 : //
96 : // FormatListRef formatList = tfm::makeFormatList(weekday, month, day, hour, min);
97 : //
98 : // The format list can now be passed into any non-template function and used
99 : // via a call to the vformat() function:
100 : //
101 : // tfm::vformat(std::cout, "%s, %s %d, %.2d:%.2d\n", formatList);
102 : //
103 : //
104 : // Additional API information
105 : // --------------------------
106 : //
107 : // Error handling: Define TINYFORMAT_ERROR to customize the error handling for
108 : // format strings which are unsupported or have the wrong number of format
109 : // specifiers (calls assert() by default).
110 : //
111 : // User defined types: Uses operator<< for user defined types by default.
112 : // Overload formatValue() for more control.
113 :
114 :
115 : #ifndef TINYFORMAT_H_INCLUDED
116 : #define TINYFORMAT_H_INCLUDED
117 :
118 : namespace tinyformat
119 : {
120 : }
121 : //------------------------------------------------------------------------------
122 : // Config section. Customize to your liking!
123 :
124 : // Namespace alias to encourage brevity
125 : namespace tfm = tinyformat;
126 :
127 : // Error handling; calls assert() by default.
128 : #define TINYFORMAT_ERROR(reasonString) throw tinyformat::format_error(reasonString)
129 :
130 : // Define for C++11 variadic templates which make the code shorter & more
131 : // general. If you don't define this, C++11 support is autodetected below.
132 : #define TINYFORMAT_USE_VARIADIC_TEMPLATES
133 :
134 :
135 : //------------------------------------------------------------------------------
136 : // Implementation details.
137 : #include <algorithm>
138 : #include <cassert>
139 : #include <iostream>
140 : #include <sstream>
141 : #include <stdexcept>
142 :
143 : #ifndef TINYFORMAT_ERROR
144 : #define TINYFORMAT_ERROR(reason) assert(0 && reason)
145 : #endif
146 :
147 : #if !defined(TINYFORMAT_USE_VARIADIC_TEMPLATES) && !defined(TINYFORMAT_NO_VARIADIC_TEMPLATES)
148 : #ifdef __GXX_EXPERIMENTAL_CXX0X__
149 : #define TINYFORMAT_USE_VARIADIC_TEMPLATES
150 : #endif
151 : #endif
152 :
153 : #if defined(__GLIBCXX__) && __GLIBCXX__ < 20080201
154 : // std::showpos is broken on old libstdc++ as provided with OSX. See
155 : // http://gcc.gnu.org/ml/libstdc++/2007-11/msg00075.html
156 : #define TINYFORMAT_OLD_LIBSTDCPLUSPLUS_WORKAROUND
157 : #endif
158 :
159 : #ifdef __APPLE__
160 : // Workaround OSX linker warning: xcode uses different default symbol
161 : // visibilities for static libs vs executables (see bitcoin's issue #25)
162 : # define TINYFORMAT_HIDDEN __attribute__((visibility("hidden")))
163 : #else
164 : # define TINYFORMAT_HIDDEN
165 : #endif
166 :
167 : namespace tinyformat
168 : {
169 :
170 : class format_error: public std::runtime_error
171 : {
172 : public:
173 0 : explicit format_error(const std::string &what): std::runtime_error(what) {
174 : }
175 : };
176 :
177 : //------------------------------------------------------------------------------
178 : namespace detail
179 : {
180 : // Test whether type T1 is convertible to type T2
181 : template <typename T1, typename T2>
182 : struct is_convertible {
183 : private:
184 : // two types of different size
185 : struct fail {
186 : char dummy[2];
187 : };
188 : struct succeed {
189 : char dummy;
190 : };
191 : // Try to convert a T1 to a T2 by plugging into tryConvert
192 : static fail tryConvert(...);
193 : static succeed tryConvert(const T2&);
194 : static const T1& makeT1();
195 :
196 : public:
197 : #ifdef _MSC_VER
198 : // Disable spurious loss of precision warnings in tryConvert(makeT1())
199 : #pragma warning(push)
200 : #pragma warning(disable : 4244)
201 : #pragma warning(disable : 4267)
202 : #endif
203 : // Standard trick: the (...) version of tryConvert will be chosen from
204 : // the overload set only if the version taking a T2 doesn't match.
205 : // Then we compare the sizes of the return types to check which
206 : // function matched. Very neat, in a disgusting kind of way :)
207 : static const bool value =
208 : sizeof(tryConvert(makeT1())) == sizeof(succeed);
209 : #ifdef _MSC_VER
210 : #pragma warning(pop)
211 : #endif
212 : };
213 :
214 :
215 : // Detect when a type is not a wchar_t string
216 : template <typename T>
217 : struct is_wchar {
218 : typedef int tinyformat_wchar_is_not_supported;
219 : };
220 : template <>
221 : struct is_wchar<wchar_t*> {
222 : };
223 : template <>
224 : struct is_wchar<const wchar_t*> {
225 : };
226 : template <int n>
227 : struct is_wchar<const wchar_t[n]> {
228 : };
229 : template <int n>
230 : struct is_wchar<wchar_t[n]> {
231 : };
232 :
233 :
234 : // Format the value by casting to type fmtT. This default implementation
235 : // should never be called.
236 : template <typename T, typename fmtT, bool convertible = is_convertible<T, fmtT>::value>
237 : struct formatValueAsType {
238 : static void invoke(std::ostream& /*out*/, const T& /*value*/) { assert(0); }
239 : };
240 : // Specialized version for types that can actually be converted to fmtT, as
241 : // indicated by the "convertible" template parameter.
242 : template <typename T, typename fmtT>
243 : struct formatValueAsType<T, fmtT, true> {
244 0 : static void invoke(std::ostream& out, const T& value)
245 : {
246 0 : out << static_cast<fmtT>(value);
247 0 : }
248 : };
249 :
250 : #ifdef TINYFORMAT_OLD_LIBSTDCPLUSPLUS_WORKAROUND
251 : template <typename T, bool convertible = is_convertible<T, int>::value>
252 : struct formatZeroIntegerWorkaround {
253 : static bool invoke(std::ostream& /**/, const T& /**/) { return false; }
254 : };
255 : template <typename T>
256 : struct formatZeroIntegerWorkaround<T, true> {
257 : static bool invoke(std::ostream& out, const T& value)
258 : {
259 : if (static_cast<int>(value) == 0 && out.flags() & std::ios::showpos) {
260 : out << "+0";
261 : return true;
262 : }
263 : return false;
264 : }
265 : };
266 : #endif // TINYFORMAT_OLD_LIBSTDCPLUSPLUS_WORKAROUND
267 :
268 : // Convert an arbitrary type to integer. The version with convertible=false
269 : // throws an error.
270 : template <typename T, bool convertible = is_convertible<T, int>::value>
271 : struct convertToInt {
272 0 : static int invoke(const T& /*value*/)
273 : {
274 0 : TINYFORMAT_ERROR("tinyformat: Cannot convert from argument type to "
275 : "integer for use as variable width or precision");
276 : return 0;
277 : }
278 : };
279 : // Specialization for convertToInt when conversion is possible
280 : template <typename T>
281 : struct convertToInt<T, true> {
282 0 : static int invoke(const T& value) { return static_cast<int>(value); }
283 : };
284 :
285 : // Format at most ntrunc characters to the given stream.
286 : template<typename T>
287 0 : inline void formatTruncated(std::ostream& out, const T& value, int ntrunc)
288 : {
289 0 : std::ostringstream tmp;
290 0 : tmp << value;
291 0 : std::string result = tmp.str();
292 0 : out.write(result.c_str(), (std::min)(ntrunc, static_cast<int>(result.size())));
293 0 : }
294 : #define TINYFORMAT_DEFINE_FORMAT_TRUNCATED_CSTR(type) \
295 : inline void formatTruncated(std::ostream& out, type* value, int ntrunc) \
296 : { \
297 : std::streamsize len = 0; \
298 : while(len < ntrunc && value[len] != 0) \
299 : ++len; \
300 : out.write(value, len); \
301 : }
302 : // Overload for const char* and char*. Could overload for signed & unsigned
303 : // char too, but these are technically unneeded for printf compatibility.
304 0 : TINYFORMAT_DEFINE_FORMAT_TRUNCATED_CSTR(const char)
305 0 : TINYFORMAT_DEFINE_FORMAT_TRUNCATED_CSTR(char)
306 : #undef TINYFORMAT_DEFINE_FORMAT_TRUNCATED_CSTR
307 :
308 : } // namespace detail
309 :
310 :
311 : //------------------------------------------------------------------------------
312 : /// Format a value into a stream, delegating to operator<< by default.
313 : ///
314 : /// Users may override this for their own types. When this function is called,
315 : /// the stream flags will have been modified according to the format string.
316 : /// The format specification is provided in the range [fmtBegin, fmtEnd). For
317 : /// truncating conversions, ntrunc is set to the desired maximum number of
318 : /// characters, for example "%.7s" calls formatValue with ntrunc = 7.
319 : ///
320 : /// By default, formatValue() uses the usual stream insertion operator
321 : /// operator<< to format the type T, with special cases for the %c and %p
322 : /// conversions.
323 : template <typename T>
324 56280083 : inline void formatValue(std::ostream& out, const char* /*fmtBegin*/,
325 : const char* fmtEnd, int ntrunc, const T& value)
326 : {
327 : #ifndef TINYFORMAT_ALLOW_WCHAR_STRINGS
328 : // Since we don't support printing of wchar_t using "%ls", make it fail at
329 : // compile time in preference to printing as a void* at runtime.
330 : typedef typename detail::is_wchar<T>::tinyformat_wchar_is_not_supported DummyType;
331 : (void)DummyType(); // avoid unused type warning with gcc-4.8
332 : #endif
333 : // The mess here is to support the %c and %p conversions: if these
334 : // conversions are active we try to convert the type to a char or const
335 : // void* respectively and format that instead of the value itself. For the
336 : // %p conversion it's important to avoid dereferencing the pointer, which
337 : // could otherwise lead to a crash when printing a dangling (const char*).
338 56280083 : const bool canConvertToChar = detail::is_convertible<T, char>::value;
339 56280083 : const bool canConvertToVoidPtr = detail::is_convertible<T, const void*>::value;
340 46680488 : if (canConvertToChar && *(fmtEnd - 1) == 'c')
341 46676295 : detail::formatValueAsType<T, char>::invoke(out, value);
342 4438090 : else if (canConvertToVoidPtr && *(fmtEnd - 1) == 'p')
343 4438090 : detail::formatValueAsType<T, const void*>::invoke(out, value);
344 : #ifdef TINYFORMAT_OLD_LIBSTDCPLUSPLUS_WORKAROUND
345 : else if (detail::formatZeroIntegerWorkaround<T>::invoke(out, value)) /**/;
346 : #endif
347 56280083 : else if(ntrunc >= 0)
348 : {
349 : // Take care not to overread C strings in truncating conversions like
350 : // "%.4s" where at most 4 characters may be read.
351 431448 : detail::formatTruncated(out, value, ntrunc);
352 : }
353 : else
354 56280083 : out << value;
355 56280072 : }
356 :
357 :
358 : // Overloaded version for char types to support printing as an integer
359 : #define TINYFORMAT_DEFINE_FORMATVALUE_CHAR(charType) \
360 : inline void formatValue(std::ostream& out, const char* /*fmtBegin*/, \
361 : const char* fmtEnd, int /**/, charType value) \
362 : { \
363 : switch (*(fmtEnd - 1)) { \
364 : case 'u': \
365 : case 'd': \
366 : case 'i': \
367 : case 'o': \
368 : case 'X': \
369 : case 'x': \
370 : out << static_cast<int>(value); \
371 : break; \
372 : default: \
373 : out << value; \
374 : break; \
375 : } \
376 : }
377 : // per 3.9.1: char, signed char and unsigned char are all distinct types
378 0 : TINYFORMAT_DEFINE_FORMATVALUE_CHAR(char)
379 : TINYFORMAT_DEFINE_FORMATVALUE_CHAR(signed char)
380 1418 : TINYFORMAT_DEFINE_FORMATVALUE_CHAR(unsigned char)
381 : #undef TINYFORMAT_DEFINE_FORMATVALUE_CHAR
382 :
383 :
384 : //------------------------------------------------------------------------------
385 : // Tools for emulating variadic templates in C++98. The basic idea here is
386 : // stolen from the boost preprocessor metaprogramming library and cut down to
387 : // be just general enough for what we need.
388 :
389 : #define TINYFORMAT_ARGTYPES(n) TINYFORMAT_ARGTYPES_##n
390 : #define TINYFORMAT_VARARGS(n) TINYFORMAT_VARARGS_##n
391 : #define TINYFORMAT_PASSARGS(n) TINYFORMAT_PASSARGS_##n
392 : #define TINYFORMAT_PASSARGS_TAIL(n) TINYFORMAT_PASSARGS_TAIL_##n
393 :
394 : // To keep it as transparent as possible, the macros below have been generated
395 : // using python via the excellent cog.py code generation script. This avoids
396 : // the need for a bunch of complex (but more general) preprocessor tricks as
397 : // used in boost.preprocessor.
398 : //
399 : // To rerun the code generation in place, use `cog.py -r tinyformat.h`
400 : // (see http://nedbatchelder.com/code/cog). Alternatively you can just create
401 : // extra versions by hand.
402 :
403 : /*[[[cog
404 : maxParams = 16
405 :
406 : def makeCommaSepLists(lineTemplate, elemTemplate, startInd=1):
407 : for j in range(startInd,maxParams+1):
408 : std::list = ', '.join([elemTemplate % {'i':i} for i in range(startInd,j+1)])
409 : cog.outl(lineTemplate % {'j':j, 'list':list})
410 :
411 : makeCommaSepLists('#define TINYFORMAT_ARGTYPES_%(j)d %(list)s',
412 : 'class T%(i)d')
413 :
414 : cog.outl()
415 : makeCommaSepLists('#define TINYFORMAT_VARARGS_%(j)d %(list)s',
416 : 'const T%(i)d& v%(i)d')
417 :
418 : cog.outl()
419 : makeCommaSepLists('#define TINYFORMAT_PASSARGS_%(j)d %(list)s', 'v%(i)d')
420 :
421 : cog.outl()
422 : cog.outl('#define TINYFORMAT_PASSARGS_TAIL_1')
423 : makeCommaSepLists('#define TINYFORMAT_PASSARGS_TAIL_%(j)d , %(list)s',
424 : 'v%(i)d', startInd = 2)
425 :
426 : cog.outl()
427 : cog.outl('#define TINYFORMAT_FOREACH_ARGNUM(m) \\\n ' +
428 : ' '.join(['m(%d)' % (j,) for j in range(1,maxParams+1)]))
429 : ]]]*/
430 : #define TINYFORMAT_ARGTYPES_1 class T1
431 : #define TINYFORMAT_ARGTYPES_2 class T1, class T2
432 : #define TINYFORMAT_ARGTYPES_3 class T1, class T2, class T3
433 : #define TINYFORMAT_ARGTYPES_4 class T1, class T2, class T3, class T4
434 : #define TINYFORMAT_ARGTYPES_5 class T1, class T2, class T3, class T4, class T5
435 : #define TINYFORMAT_ARGTYPES_6 class T1, class T2, class T3, class T4, class T5, class T6
436 : #define TINYFORMAT_ARGTYPES_7 class T1, class T2, class T3, class T4, class T5, class T6, class T7
437 : #define TINYFORMAT_ARGTYPES_8 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8
438 : #define TINYFORMAT_ARGTYPES_9 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9
439 : #define TINYFORMAT_ARGTYPES_10 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10
440 : #define TINYFORMAT_ARGTYPES_11 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10, class T11
441 : #define TINYFORMAT_ARGTYPES_12 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10, class T11, class T12
442 : #define TINYFORMAT_ARGTYPES_13 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10, class T11, class T12, class T13
443 : #define TINYFORMAT_ARGTYPES_14 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10, class T11, class T12, class T13, class T14
444 : #define TINYFORMAT_ARGTYPES_15 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10, class T11, class T12, class T13, class T14, class T15
445 : #define TINYFORMAT_ARGTYPES_16 class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10, class T11, class T12, class T13, class T14, class T15, class T16
446 :
447 : #define TINYFORMAT_VARARGS_1 const T1& v1
448 : #define TINYFORMAT_VARARGS_2 const T1 &v1, const T2 &v2
449 : #define TINYFORMAT_VARARGS_3 const T1 &v1, const T2 &v2, const T3 &v3
450 : #define TINYFORMAT_VARARGS_4 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4
451 : #define TINYFORMAT_VARARGS_5 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5
452 : #define TINYFORMAT_VARARGS_6 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6
453 : #define TINYFORMAT_VARARGS_7 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7
454 : #define TINYFORMAT_VARARGS_8 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8
455 : #define TINYFORMAT_VARARGS_9 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8, const T9 &v9
456 : #define TINYFORMAT_VARARGS_10 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8, const T9 &v9, const T10 &v10
457 : #define TINYFORMAT_VARARGS_11 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8, const T9 &v9, const T10 &v10, const T11 &v11
458 : #define TINYFORMAT_VARARGS_12 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8, const T9 &v9, const T10 &v10, const T11 &v11, const T12 &v12
459 : #define TINYFORMAT_VARARGS_13 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8, const T9 &v9, const T10 &v10, const T11 &v11, const T12 &v12, const T13 &v13
460 : #define TINYFORMAT_VARARGS_14 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8, const T9 &v9, const T10 &v10, const T11 &v11, const T12 &v12, const T13 &v13, const T14 &v14
461 : #define TINYFORMAT_VARARGS_15 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8, const T9 &v9, const T10 &v10, const T11 &v11, const T12 &v12, const T13 &v13, const T14 &v14, const T15 &v15
462 : #define TINYFORMAT_VARARGS_16 const T1 &v1, const T2 &v2, const T3 &v3, const T4 &v4, const T5 &v5, const T6 &v6, const T7 &v7, const T8 &v8, const T9 &v9, const T10 &v10, const T11 &v11, const T12 &v12, const T13 &v13, const T14 &v14, const T15 &v15, const T16 &v16
463 :
464 : #define TINYFORMAT_PASSARGS_1 v1
465 : #define TINYFORMAT_PASSARGS_2 v1, v2
466 : #define TINYFORMAT_PASSARGS_3 v1, v2, v3
467 : #define TINYFORMAT_PASSARGS_4 v1, v2, v3, v4
468 : #define TINYFORMAT_PASSARGS_5 v1, v2, v3, v4, v5
469 : #define TINYFORMAT_PASSARGS_6 v1, v2, v3, v4, v5, v6
470 : #define TINYFORMAT_PASSARGS_7 v1, v2, v3, v4, v5, v6, v7
471 : #define TINYFORMAT_PASSARGS_8 v1, v2, v3, v4, v5, v6, v7, v8
472 : #define TINYFORMAT_PASSARGS_9 v1, v2, v3, v4, v5, v6, v7, v8, v9
473 : #define TINYFORMAT_PASSARGS_10 v1, v2, v3, v4, v5, v6, v7, v8, v9, v10
474 : #define TINYFORMAT_PASSARGS_11 v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11
475 : #define TINYFORMAT_PASSARGS_12 v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12
476 : #define TINYFORMAT_PASSARGS_13 v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13
477 : #define TINYFORMAT_PASSARGS_14 v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14
478 : #define TINYFORMAT_PASSARGS_15 v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15
479 : #define TINYFORMAT_PASSARGS_16 v1, v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16
480 :
481 : #define TINYFORMAT_PASSARGS_TAIL_1
482 : #define TINYFORMAT_PASSARGS_TAIL_2 , v2
483 : #define TINYFORMAT_PASSARGS_TAIL_3 , v2, v3
484 : #define TINYFORMAT_PASSARGS_TAIL_4 , v2, v3, v4
485 : #define TINYFORMAT_PASSARGS_TAIL_5 , v2, v3, v4, v5
486 : #define TINYFORMAT_PASSARGS_TAIL_6 , v2, v3, v4, v5, v6
487 : #define TINYFORMAT_PASSARGS_TAIL_7 , v2, v3, v4, v5, v6, v7
488 : #define TINYFORMAT_PASSARGS_TAIL_8 , v2, v3, v4, v5, v6, v7, v8
489 : #define TINYFORMAT_PASSARGS_TAIL_9 , v2, v3, v4, v5, v6, v7, v8, v9
490 : #define TINYFORMAT_PASSARGS_TAIL_10 , v2, v3, v4, v5, v6, v7, v8, v9, v10
491 : #define TINYFORMAT_PASSARGS_TAIL_11 , v2, v3, v4, v5, v6, v7, v8, v9, v10, v11
492 : #define TINYFORMAT_PASSARGS_TAIL_12 , v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12
493 : #define TINYFORMAT_PASSARGS_TAIL_13 , v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13
494 : #define TINYFORMAT_PASSARGS_TAIL_14 , v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14
495 : #define TINYFORMAT_PASSARGS_TAIL_15 , v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15
496 : #define TINYFORMAT_PASSARGS_TAIL_16 , v2, v3, v4, v5, v6, v7, v8, v9, v10, v11, v12, v13, v14, v15, v16
497 :
498 : #define TINYFORMAT_FOREACH_ARGNUM(m) \
499 : m(1) m(2) m(3) m(4) m(5) m(6) m(7) m(8) m(9) m(10) m(11) m(12) m(13) m(14) m(15) m(16)
500 : //[[[end]]]
501 :
502 :
503 : namespace detail
504 : {
505 : // Type-opaque holder for an argument to format(), with associated actions on
506 : // the type held as explicit function pointers. This allows FormatArg's for
507 : // each argument to be allocated as a homogenous array inside FormatList
508 : // whereas a naive implementation based on inheritance does not.
509 : class FormatArg
510 : {
511 : public:
512 : FormatArg() {}
513 :
514 : template<typename T>
515 15033067 : explicit FormatArg(const T& value)
516 : : m_value(static_cast<const void*>(&value)),
517 : m_formatImpl(&formatImpl<T>),
518 15033067 : m_toIntImpl(&toIntImpl<T>)
519 : { }
520 :
521 56281480 : void format(std::ostream& out, const char* fmtBegin,
522 : const char* fmtEnd, int ntrunc) const
523 : {
524 56281480 : m_formatImpl(out, fmtBegin, fmtEnd, ntrunc, m_value);
525 56281480 : }
526 :
527 0 : int toInt() const
528 : {
529 0 : return m_toIntImpl(m_value);
530 : }
531 :
532 : private:
533 : template<typename T>
534 56281501 : TINYFORMAT_HIDDEN static void formatImpl(std::ostream& out, const char* fmtBegin,
535 : const char* fmtEnd, int ntrunc, const void* value)
536 : {
537 56281501 : formatValue(out, fmtBegin, fmtEnd, ntrunc, *static_cast<const T*>(value));
538 56281501 : }
539 :
540 : template <typename T>
541 0 : TINYFORMAT_HIDDEN static int toIntImpl(const void* value)
542 : {
543 0 : return convertToInt<T>::invoke(*static_cast<const T*>(value));
544 : }
545 :
546 : const void* m_value;
547 : void (*m_formatImpl)(std::ostream& out, const char* fmtBegin,
548 : const char* fmtEnd, int ntrunc, const void* value);
549 : int (*m_toIntImpl)(const void* value);
550 : };
551 :
552 :
553 : // Parse and return an integer from the string c, as atoi()
554 : // On return, c is set to one past the end of the integer.
555 33028630 : inline int parseIntAndAdvance(const char*& c)
556 : {
557 33028630 : int i = 0;
558 66143163 : for(;*c >= '0' && *c <= '9'; ++c)
559 34367833 : i = 10*i + (*c - '0');
560 33028630 : return i;
561 : }
562 :
563 : // Print literal part of format string and return next format spec
564 : // position.
565 : //
566 : // Skips over any occurrences of '%%', printing a literal '%' to the
567 : // output. The position of the first % character of the next
568 : // nontrivial format spec is returned, or the end of string.
569 71801770 : inline const char* printFormatStringLiteral(std::ostream& out, const char* fmt)
570 : {
571 71801770 : const char* c = fmt;
572 229514410 : for(;; ++c) {
573 301316540 : switch(*c)
574 : {
575 15520280 : case '\0':
576 15520280 : out.write(fmt, c - fmt);
577 15520280 : return c;
578 56308480 : case '%':
579 56308480 : out.write(fmt, c - fmt);
580 56308480 : if(*(c+1) != '%')
581 : return c;
582 : // for "%%", tack trailing % onto next literal section.
583 27004 : fmt = ++c;
584 27004 : break;
585 : default:
586 : break;
587 : }
588 : }
589 : }
590 :
591 :
592 : // Parse a format string and set the stream state accordingly.
593 : //
594 : // The format mini-language recognized here is meant to be the one from C99,
595 : // with the form "%[flags][width][.precision][length]type".
596 : //
597 : // Formatting options which can't be natively represented using the ostream
598 : // state are returned in spacePadPositive (for space padded positive numbers)
599 : // and ntrunc (for truncating conversions). argIndex is incremented if
600 : // necessary to pull out variable width and precision . The function returns a
601 : // pointer to the character after the end of the current format spec.
602 56281480 : inline const char* streamStateFromFormat(std::ostream& out, bool& spacePadPositive,
603 : int& ntrunc, const char* fmtStart,
604 : const detail::FormatArg* formatters,
605 : int& argIndex, int numFormatters)
606 : {
607 56281480 : if (*fmtStart != '%') {
608 0 : TINYFORMAT_ERROR("tinyformat: Not enough conversion specifiers in format string");
609 : return fmtStart;
610 : }
611 : // Reset stream state to defaults.
612 56281480 : out.width(0);
613 56281480 : out.precision(6);
614 56281480 : out.fill(' ');
615 : // Reset most flags; ignore irrelevant unitbuf & skipws.
616 56281480 : out.unsetf(std::ios::adjustfield | std::ios::basefield |
617 : std::ios::floatfield | std::ios::showbase | std::ios::boolalpha |
618 : std::ios::showpoint | std::ios::showpos | std::ios::uppercase);
619 56281480 : bool precisionSet = false;
620 56281480 : bool widthSet = false;
621 56281480 : int widthExtra = 0;
622 56281480 : const char* c = fmtStart + 1;
623 : // 1) Parse flags
624 32883030 : for (;; ++c) {
625 89164510 : switch (*c) {
626 0 : case '#':
627 0 : out.setf(std::ios::showpoint | std::ios::showbase);
628 0 : continue;
629 32874530 : case '0':
630 : // overridden by left alignment ('-' flag)
631 32874530 : if (!(out.flags() & std::ios::left)) {
632 : // Use internal padding so that numeric values are
633 : // formatted correctly, eg -00010 rather than 000-10
634 32874530 : out.fill('0');
635 32874530 : out.setf(std::ios::internal, std::ios::adjustfield);
636 : }
637 32874530 : continue;
638 0 : case '-':
639 0 : out.fill(' ');
640 0 : out.setf(std::ios::left, std::ios::adjustfield);
641 0 : continue;
642 0 : case ' ':
643 : // overridden by show positive sign, '+' flag.
644 0 : if (!(out.flags() & std::ios::showpos))
645 0 : spacePadPositive = true;
646 0 : continue;
647 8468 : case '+':
648 8468 : out.setf(std::ios::showpos);
649 8468 : spacePadPositive = false;
650 8468 : widthExtra = 1;
651 8468 : continue;
652 56281480 : default:
653 56281480 : break;
654 : }
655 56281480 : break;
656 : }
657 : // 2) Parse width
658 56281480 : if (*c >= '0' && *c <= '9') {
659 33028630 : widthSet = true;
660 66057260 : out.width(parseIntAndAdvance(c));
661 : }
662 56281480 : if (*c == '*') {
663 0 : widthSet = true;
664 0 : int width = 0;
665 0 : if(argIndex < numFormatters)
666 0 : width = formatters[argIndex++].toInt();
667 : else
668 0 : TINYFORMAT_ERROR("tinyformat: Not enough arguments to read variable width");
669 0 : if(width < 0) {
670 : // negative widths correspond to '-' flag set
671 0 : out.fill(' ');
672 0 : out.setf(std::ios::left, std::ios::adjustfield);
673 0 : width = -width;
674 : }
675 0 : out.width(width);
676 0 : ++c;
677 : }
678 : // 3) Parse precision
679 56281480 : if (*c == '.') {
680 1213900 : ++c;
681 1213900 : int precision = 0;
682 1213900 : if (*c == '*') {
683 0 : ++c;
684 0 : if(argIndex < numFormatters)
685 0 : precision = formatters[argIndex++].toInt();
686 : else
687 0 : TINYFORMAT_ERROR("tinyformat: Not enough arguments to read variable precision");
688 : } else {
689 1213900 : if (*c >= '0' && *c <= '9')
690 2467160 : precision = parseIntAndAdvance(c);
691 0 : else if (*c == '-') // negative precisions ignored, treated as zero.
692 0 : parseIntAndAdvance(++c);
693 : }
694 1213900 : out.precision(precision);
695 1213900 : precisionSet = true;
696 : }
697 : // 4) Ignore any C99 length modifier
698 56282580 : while (*c == 'l' || *c == 'h' || *c == 'L' ||
699 112818140 : *c == 'j' || *c == 'z' || *c == 't')
700 254111 : ++c;
701 : // 5) We're up to the conversion specifier character.
702 : // Set stream flags based on conversion specifier (thanks to the
703 : // boost::format class for forging the way here).
704 56281480 : bool intConversion = false;
705 56281480 : switch (*c) {
706 45241140 : case 'u':
707 45241140 : case 'd':
708 45241140 : case 'i':
709 45241140 : out.setf(std::ios::dec, std::ios::basefield);
710 45241140 : intConversion = true;
711 45241140 : break;
712 0 : case 'o':
713 0 : out.setf(std::ios::oct, std::ios::basefield);
714 0 : intConversion = true;
715 0 : break;
716 0 : case 'X':
717 0 : out.setf(std::ios::uppercase);
718 64720 : case 'x':
719 64720 : case 'p':
720 64720 : out.setf(std::ios::hex, std::ios::basefield);
721 64720 : intConversion = true;
722 64720 : break;
723 0 : case 'E':
724 0 : out.setf(std::ios::uppercase);
725 0 : case 'e':
726 0 : out.setf(std::ios::scientific, std::ios::floatfield);
727 0 : out.setf(std::ios::dec, std::ios::basefield);
728 : break;
729 0 : case 'F':
730 0 : out.setf(std::ios::uppercase);
731 1232382 : case 'f':
732 1232382 : out.setf(std::ios::fixed, std::ios::floatfield);
733 : break;
734 0 : case 'G':
735 0 : out.setf(std::ios::uppercase);
736 66061 : case 'g':
737 66061 : out.setf(std::ios::dec, std::ios::basefield);
738 : // As in boost::format, let stream decide float format.
739 66061 : out.flags(out.flags() & ~std::ios::floatfield);
740 : break;
741 0 : case 'a':
742 0 : case 'A':
743 0 : TINYFORMAT_ERROR("tinyformat: the %a and %A conversion specs "
744 : "are not supported");
745 : break;
746 : case 'c':
747 : // Handled as special case inside formatValue()
748 : break;
749 9677148 : case 's':
750 9677148 : if (precisionSet)
751 0 : ntrunc = static_cast<int>(out.precision());
752 : // Make %s print booleans as "true" and "false"
753 9677148 : out.setf(std::ios::boolalpha);
754 : break;
755 0 : case 'n':
756 : // Not supported - will cause problems!
757 0 : TINYFORMAT_ERROR("tinyformat: %n conversion spec not supported");
758 0 : break;
759 0 : case '\0':
760 0 : TINYFORMAT_ERROR("tinyformat: Conversion spec incorrectly "
761 : "terminated by end of string");
762 : return c;
763 : default:
764 : break;
765 : }
766 56281480 : if (intConversion && precisionSet && !widthSet) {
767 : // "precision" for integers gives the minimum number of digits (to be
768 : // padded with zeros on the left). This isn't really supported by the
769 : // iostreams, but we can approximately simulate it with the width if
770 : // the width isn't otherwise used.
771 0 : out.width(out.precision() + widthExtra);
772 0 : out.setf(std::ios::internal, std::ios::adjustfield);
773 0 : out.fill('0');
774 : }
775 56281480 : return c + 1;
776 : }
777 :
778 :
779 : //------------------------------------------------------------------------------
780 15520280 : inline void formatImpl(std::ostream& out, const char* fmt,
781 : const detail::FormatArg* formatters,
782 : int numFormatters)
783 : {
784 : // Saved stream state
785 15520280 : std::streamsize origWidth = out.width();
786 15520280 : std::streamsize origPrecision = out.precision();
787 15520280 : std::ios::fmtflags origFlags = out.flags();
788 15520280 : char origFill = out.fill();
789 :
790 71801770 : for (int argIndex = 0; argIndex < numFormatters; ++argIndex)
791 : {
792 : // Parse the format string
793 56281480 : fmt = printFormatStringLiteral(out, fmt);
794 56281480 : bool spacePadPositive = false;
795 56281480 : int ntrunc = -1;
796 56281480 : const char* fmtEnd = streamStateFromFormat(out, spacePadPositive, ntrunc, fmt,
797 : formatters, argIndex, numFormatters);
798 56281480 : if (argIndex >= numFormatters)
799 : {
800 : // Check args remain after reading any variable width/precision
801 0 : TINYFORMAT_ERROR("tinyformat: Not enough format arguments");
802 : return;
803 : }
804 56281480 : const FormatArg& arg = formatters[argIndex];
805 : // Format the arg into the stream.
806 56281480 : if(!spacePadPositive)
807 56281480 : arg.format(out, fmt, fmtEnd, ntrunc);
808 : else
809 : {
810 : // The following is a special case with no direct correspondence
811 : // between stream formatting and the printf() behaviour. Simulate
812 : // it crudely by formatting into a temporary string stream and
813 : // munging the resulting string.
814 0 : std::ostringstream tmpStream;
815 0 : tmpStream.copyfmt(out);
816 0 : tmpStream.setf(std::ios::showpos);
817 0 : arg.format(tmpStream, fmt, fmtEnd, ntrunc);
818 0 : std::string result = tmpStream.str(); // allocates... yuck.
819 0 : for(size_t i = 0, iend = result.size(); i < iend; ++i)
820 0 : if(result[i] == '+') result[i] = ' ';
821 0 : out << result;
822 : }
823 56281480 : fmt = fmtEnd;
824 : }
825 :
826 : // Print remaining part of format string.
827 15520280 : fmt = printFormatStringLiteral(out, fmt);
828 15520280 : if(*fmt != '\0')
829 0 : TINYFORMAT_ERROR("tinyformat: Too many conversion specifiers in format string");
830 :
831 : // Restore stream state
832 15520280 : out.width(origWidth);
833 15520280 : out.precision(origPrecision);
834 15520280 : out.flags(origFlags);
835 15520280 : out.fill(origFill);
836 : }
837 :
838 : } // namespace detail
839 :
840 :
841 : /// List of template arguments format(), held in a type-opaque way.
842 : ///
843 : /// A const reference to FormatList (typedef'd as FormatListRef) may be
844 : /// conveniently used to pass arguments to non-template functions: All type
845 : /// information has been stripped from the arguments, leaving just enough of a
846 : /// common interface to perform formatting as required.
847 : class FormatList
848 : {
849 : public:
850 15520314 : FormatList(detail::FormatArg* formatters, int N)
851 15520314 : : m_formatters(formatters), m_N(N) { }
852 :
853 : friend void vformat(std::ostream& out, const char* fmt,
854 : const FormatList& list);
855 :
856 : private:
857 : const detail::FormatArg* m_formatters;
858 : int m_N;
859 : };
860 :
861 : /// Reference to type-opaque format list for passing to vformat()
862 : typedef const FormatList& FormatListRef;
863 :
864 :
865 : namespace detail {
866 :
867 : // Format list subclass with fixed storage to avoid dynamic allocation
868 : template<int N>
869 : class FormatListN : public FormatList
870 : {
871 : public:
872 : #ifdef TINYFORMAT_USE_VARIADIC_TEMPLATES
873 : template<typename... Args>
874 15033067 : explicit FormatListN(const Args&... args)
875 : : FormatList(&m_formatterStore[0], N),
876 15033067 : m_formatterStore { FormatArg(args)... }
877 : { static_assert(sizeof...(args) == N, "Number of args must be N"); }
878 : #else // C++98 version
879 : void init(int) {}
880 : # define TINYFORMAT_MAKE_FORMATLIST_CONSTRUCTOR(n) \
881 : \
882 : template<TINYFORMAT_ARGTYPES(n)> \
883 : explicit FormatListN(TINYFORMAT_VARARGS(n)) \
884 : : FormatList(&m_formatterStore[0], n) \
885 : { assert(n == N); init(0, TINYFORMAT_PASSARGS(n)); } \
886 : \
887 : template<TINYFORMAT_ARGTYPES(n)> \
888 : void init(int i, TINYFORMAT_VARARGS(n)) \
889 : { \
890 : m_formatterStore[i] = FormatArg(v1); \
891 : init(i+1 TINYFORMAT_PASSARGS_TAIL(n)); \
892 : }
893 :
894 : TINYFORMAT_FOREACH_ARGNUM(TINYFORMAT_MAKE_FORMATLIST_CONSTRUCTOR)
895 : # undef TINYFORMAT_MAKE_FORMATLIST_CONSTRUCTOR
896 : #endif
897 : private:
898 : FormatArg m_formatterStore[N];
899 : };
900 :
901 : // Special 0-arg version - MSVC says zero-sized C array in struct is nonstandard
902 : template<> class FormatListN<0> : public FormatList
903 : {
904 487246 : public: FormatListN() : FormatList(0, 0) {}
905 : };
906 :
907 : } // namespace detail
908 :
909 :
910 : //------------------------------------------------------------------------------
911 : // Primary API functions
912 :
913 : #ifdef TINYFORMAT_USE_VARIADIC_TEMPLATES
914 :
915 : /// Make type-agnostic format list from list of template arguments.
916 : ///
917 : /// The exact return type of this function is an implementation detail and
918 : /// shouldn't be relied upon. Instead it should be stored as a FormatListRef:
919 : ///
920 : /// FormatListRef formatList = makeFormatList( /*...*/ );
921 : template<typename... Args>
922 15520313 : detail::FormatListN<sizeof...(Args)> makeFormatList(const Args&... args)
923 : {
924 15520313 : return detail::FormatListN<sizeof...(args)>(args...);
925 : }
926 :
927 : #else // C++98 version
928 :
929 : inline detail::FormatListN<0> makeFormatList()
930 : {
931 : return detail::FormatListN<0>();
932 : }
933 : #define TINYFORMAT_MAKE_MAKEFORMATLIST(n) \
934 : template<TINYFORMAT_ARGTYPES(n)> \
935 : detail::FormatListN<n> makeFormatList(TINYFORMAT_VARARGS(n)) \
936 : { \
937 : return detail::FormatListN<n>(TINYFORMAT_PASSARGS(n)); \
938 : }
939 : TINYFORMAT_FOREACH_ARGNUM(TINYFORMAT_MAKE_MAKEFORMATLIST)
940 : #undef TINYFORMAT_MAKE_MAKEFORMATLIST
941 :
942 : #endif
943 :
944 : /// Format list of arguments to the stream according to the given format string.
945 : ///
946 : /// The name vformat() is chosen for the semantic similarity to vprintf(): the
947 : /// list of format arguments is held in a single function argument.
948 15520314 : inline void vformat(std::ostream& out, const char* fmt, FormatListRef list)
949 : {
950 15520314 : detail::formatImpl(out, fmt, list.m_formatters, list.m_N);
951 : }
952 :
953 :
954 : #ifdef TINYFORMAT_USE_VARIADIC_TEMPLATES
955 :
956 : /// Format list of arguments to the stream according to given format string.
957 : template<typename... Args>
958 15520313 : void format(std::ostream& out, const char* fmt, const Args&... args)
959 : {
960 15520313 : vformat(out, fmt, makeFormatList(args...));
961 15520313 : }
962 :
963 : /// Format list of arguments according to the given format string and return
964 : /// the result as a string.
965 : template<typename... Args>
966 15518471 : std::string format(const char* fmt, const Args&... args)
967 : {
968 15518471 : std::ostringstream oss;
969 15518471 : format(oss, fmt, args...);
970 15518471 : return oss.str();
971 : }
972 :
973 : /// Format list of arguments to std::cout, according to the given format string
974 : template<typename... Args>
975 : void printf(const char* fmt, const Args&... args)
976 : {
977 : format(std::cout, fmt, args...);
978 : }
979 :
980 : template<typename... Args>
981 : void printfln(const char* fmt, const Args&... args)
982 : {
983 : format(std::cout, fmt, args...);
984 : std::cout << '\n';
985 : }
986 :
987 : #else // C++98 version
988 :
989 : inline void format(std::ostream& out, const char* fmt)
990 : {
991 : vformat(out, fmt, makeFormatList());
992 : }
993 :
994 : inline std::string format(const char* fmt)
995 : {
996 : std::ostringstream oss;
997 : format(oss, fmt);
998 : return oss.str();
999 : }
1000 :
1001 : inline void printf(const char* fmt)
1002 : {
1003 : format(std::cout, fmt);
1004 : }
1005 :
1006 : inline void printfln(const char* fmt)
1007 : {
1008 : format(std::cout, fmt);
1009 : std::cout << '\n';
1010 : }
1011 :
1012 : #define TINYFORMAT_MAKE_FORMAT_FUNCS(n) \
1013 : \
1014 : template <TINYFORMAT_ARGTYPES(n)> \
1015 : void format(std::ostream& out, const char* fmt, TINYFORMAT_VARARGS(n)) \
1016 : { \
1017 : vformat(out, fmt, makeFormatList(TINYFORMAT_PASSARGS(n))); \
1018 : } \
1019 : \
1020 : template <TINYFORMAT_ARGTYPES(n)> \
1021 : std::string format(const char* fmt, TINYFORMAT_VARARGS(n)) \
1022 : { \
1023 : std::ostringstream oss; \
1024 : format(oss, fmt, TINYFORMAT_PASSARGS(n)); \
1025 : return oss.str(); \
1026 : } \
1027 : \
1028 : template <TINYFORMAT_ARGTYPES(n)> \
1029 : void printf(const char* fmt, TINYFORMAT_VARARGS(n)) \
1030 : { \
1031 : format(std::cout, fmt, TINYFORMAT_PASSARGS(n)); \
1032 : } \
1033 : \
1034 : template <TINYFORMAT_ARGTYPES(n)> \
1035 : void printfln(const char* fmt, TINYFORMAT_VARARGS(n)) \
1036 : { \
1037 : format(std::cout, fmt, TINYFORMAT_PASSARGS(n)); \
1038 : std::cout << '\n'; \
1039 : }
1040 :
1041 : TINYFORMAT_FOREACH_ARGNUM(TINYFORMAT_MAKE_FORMAT_FUNCS)
1042 : #undef TINYFORMAT_MAKE_FORMAT_FUNCS
1043 : #endif
1044 :
1045 : // Added for Bitcoin Core
1046 : template<typename... Args>
1047 1842 : std::string format(const std::string &fmt, const Args&... args)
1048 : {
1049 1842 : std::ostringstream oss;
1050 1842 : format(oss, fmt.c_str(), args...);
1051 1842 : return oss.str();
1052 : }
1053 :
1054 : } // namespace tinyformat
1055 :
1056 : #define strprintf tfm::format
1057 :
1058 : #endif // TINYFORMAT_H_INCLUDED
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