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9df0177f33
We would rather use the ucrt for these, but sometimes dependencies on the mingw stdio functions creep in. 仕方ない. The cost is only paid if they are used; otherwise the symbols are garbage-collected at link time.
32 lines
657 B
C
Vendored
32 lines
657 B
C
Vendored
#define _GNU_SOURCE
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#define __CRT__NO_INLINE
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdarg.h>
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int __mingw_asprintf(char ** __restrict__ ret,
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const char * __restrict__ format,
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...) {
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va_list ap;
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int len;
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va_start(ap,format);
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/* Get Length */
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len = __mingw_vsnprintf(NULL,0,format,ap);
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if (len < 0) goto _end;
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/* +1 for \0 terminator. */
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*ret = malloc(len + 1);
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/* Check malloc fail*/
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if (!*ret) {
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len = -1;
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goto _end;
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}
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/* Write String */
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__mingw_vsnprintf(*ret,len+1,format,ap);
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/* Terminate explicitly */
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(*ret)[len] = '\0';
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_end:
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va_end(ap);
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return len;
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}
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