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Get GNU MPFR and MPC tests to pass

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This change fixes more issues with our scanf() function.
This commit is contained in:
Justine Tunney 2023-08-21 12:16:52 -07:00
parent 63a1636e1f
commit 6ef2a471e4
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GPG key ID: BE714B4575D6E328
37 changed files with 389 additions and 865 deletions
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7
libc/stdio/vsnprintf.c
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@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/dce.h"
#include "libc/fmt/fmt.h"
#include "libc/limits.h"
@ -46,8 +47,7 @@ static int vsnprintfputchar(const char *s, struct SprintfStr *t, size_t n) {
/**
* Formats string to buffer w/ preexisting vararg state.
*
* @param buf stores output and a NUL-terminator is always written,
* provided buf!=NULL && size!=0
* @param buf stores output
* @param size is byte capacity buf
* @return number of bytes written, excluding the NUL terminator; or,
* if the output buffer wasn't passed, or was too short, then the
@ -58,7 +58,8 @@ static int vsnprintfputchar(const char *s, struct SprintfStr *t, size_t n) {
*/
int vsnprintf(char *buf, size_t size, const char *fmt, va_list va) {
struct SprintfStr str = {buf, 0, size};
__fmt(vsnprintfputchar, &str, fmt, va);
int rc = __fmt(vsnprintfputchar, &str, fmt, va);
if (rc < 0) return rc;
if (str.n) str.p[MIN(str.i, str.n - 1)] = '\0';
return str.i;
}