49 lines
1.6 KiB
Markdown
49 lines
1.6 KiB
Markdown
## error: 'to_string' is not a member of 'std'
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This is an error that might come up when using certain GNU based compilers, including:
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* MinGW 4.7, 4.8
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* Android NDK
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* ...
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This is not an issue with this json tool, but rather with the compiler itself. Here's how I fixed it, thanks to [this page](http://tehsausage.com/mingw-to-string). I do not guarantee that this will work, only that it worked for me.
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### mingw/include/wchar.h, mingw/include/stdio.h
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(This same snippet needs replacing in two header files)
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```
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-/* These differ from the ISO C prototypes, which have a maxlen parameter like snprintf. */
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-#ifndef __STRICT_ANSI__
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-_CRTIMP int __cdecl __MINGW_NOTHROW swprintf (wchar_t*, const wchar_t*, ...);
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-_CRTIMP int __cdecl __MINGW_NOTHROW vswprintf (wchar_t*, const wchar_t*, __VALIST);
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-#endif
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+__CRT_INLINE int __cdecl __MINGW_NOTHROW swprintf (wchar_t* buffer, size_t count, const wchar_t* format, ...)
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+{
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+ __builtin_va_list argptr;
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+ __builtin_va_start(argptr, format);
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+ return _vsnwprintf(buffer, count, format, argptr);
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+}
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+
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+__CRT_INLINE int __cdecl __MINGW_NOTHROW vswprintf (wchar_t* buffer, size_t count, const wchar_t* format, __VALIST argptr)
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+{
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+ return _vsnwprintf(buffer, count, format, argptr);
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+}
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```
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### mingw\lib\gcc\mingw32\4.7.0\include\c++\mingw32\bits\os_defines.h
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This preprocessor flag needs to be removed
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```
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-#define _GLIBCXX_HAVE_BROKEN_VSWPRINTF 1
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```
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### MinGW\lib\gcc\mingw32\4.8.1\include\c++\mingw32\bits\c++config.h
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This may or may not be necessary, but if so, then makefiles will require `-std=gnu++11` too.
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```
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-/* #define _GLIBCXX_USE_C99 1 */
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+#define _GLIBCXX_USE_C99 1
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``` |