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Set errno in vaswprintf in case vswprintf does not 

As is the case on GNU.
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Curtis McEnroe 2018-08-20 17:28:42 -04:00
parent 133ff4e651
commit afae851319
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pls.c
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@ -75,6 +75,7 @@ int vaswprintf(wchar_t **ret, const wchar_t *format, va_list ap) {
va_list _ap;
va_copy(_ap, ap);
errno = EOVERFLOW; // vswprintf may not set errno.
int len = vswprintf(*ret, 1 + cap, format, _ap);
va_end(_ap);