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Support proper %g, %f, and %a float formatting

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See #61
See #104
This commit is contained in:
Justine Tunney 2021-03-05 10:31:16 -08:00
parent e26bdbec52
commit f064183646
48 changed files with 1034 additions and 921 deletions
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4
libc/fmt/vsnprintf.c
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@ -44,13 +44,13 @@ static noinstrument int vsnprintfputchar(unsigned char c,
* @return number of bytes written, excluding the NUL terminator; or,
* if the output buffer wasn't passed, or was too short, then the
* number of characters that *would* have been written is returned
* @see palandprintf() and printf() for detailed documentation
* @see __fmt() and printf() for detailed documentation
* @asyncsignalsafe
* @vforksafe
*/
int(vsnprintf)(char *buf, size_t size, const char *fmt, va_list va) {
struct SprintfStr str = {buf, 0, size};
palandprintf(vsnprintfputchar, &str, fmt, va);
__fmt(vsnprintfputchar, &str, fmt, va);
if (str.n) str.p[min(str.i, str.n - 1)] = '\0';
return str.i;
}