Per MS documentation, macros _stprintf and _vstprintf always expands to s(w)printf function variant which does not take buffer size argument.
https://learn.microsoft.com/en-us/cpp/c-runtime-library/reference/sprintf-sprintf-l-swprintf-swprintf-l-swprintf-l So _stprintf() expands either to C89 sprintf() function or to MS-specific _swprintf() function. C95 swprintf() takes buffer size argument and so, it is not compatible for _stprintf() and cannot be used. So replace swprintf by _swprintf in _UNICODE mode of _stprintf expansion. --- mingw-w64-headers/crt/tchar.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mingw-w64-headers/crt/tchar.h b/mingw-w64-headers/crt/tchar.h index e0ce3f4741e2..3069d7139da4 100644 --- a/mingw-w64-headers/crt/tchar.h +++ b/mingw-w64-headers/crt/tchar.h @@ -149,7 +149,7 @@ extern "C" { #define _ftprintf_l _fwprintf_l #define _ftprintf_p _fwprintf_p #define _ftprintf_p_l _fwprintf_p_l -#define _stprintf swprintf +#define _stprintf _swprintf #define _stprintf_l __swprintf_l #define _stprintf_p _swprintf_p #define _stprintf_p_l _swprintf_p_l @@ -167,7 +167,7 @@ extern "C" { #define _vftprintf_l _vfwprintf_l #define _vftprintf_p _vfwprintf_p #define _vftprintf_p_l _vfwprintf_p_l -#define _vstprintf vswprintf +#define _vstprintf _vswprintf #define _vstprintf_l _vswprintf_l #define _vstprintf_p _vswprintf_p #define _vstprintf_p_l _vswprintf_p_l -- 2.20.1 _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
