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Support printf %n directive

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Justine Tunney 2024-07-28 22:27:06 -07:00
parent c1a0b017e9
commit 01b09bc817
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GPG key ID: BE714B4575D6E328
8 changed files with 21 additions and 8 deletions
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5
libc/stdio/fmt.c
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@ -43,6 +43,7 @@
#include "libc/errno.h"
#include "libc/fmt/conv.h"
#include "libc/fmt/divmod10.internal.h"
#include "libc/fmt/internal.h"
#include "libc/fmt/itoa.h"
#include "libc/intrin/bsr.h"
#include "libc/intrin/nomultics.h"
@ -820,7 +821,7 @@ static int __fmt_noop(const char *, void *, size_t) {
* @asyncsignalsafe if floating point isn't used
* @vforksafe if floating point isn't used
*/
int __fmt(void *fn, void *arg, const char *format, va_list va) {
int __fmt(void *fn, void *arg, const char *format, va_list va, int *wrote) {
long ld;
void *p;
double x;
@ -1121,7 +1122,7 @@ int __fmt(void *fn, void *arg, const char *format, va_list va) {
}
break;
case 'n':
__FMT_PUT('\n');
*va_arg(va, int *) = *wrote;
break;
case 'F':