blob: c218a3dac604ed435d02e06c17afc587cda0e9ad (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
#include <stdarg.h>
#include <stdio.h>
#include "_format.h"
/** write formatted output to a string **/
int vsprintf(char *s, const char *format, va_list arg)
{
int ret = 0;
struct io_options opt = {0};
SIGNAL_SAFE(0);
/* overlap can't be detected because the size of s is unknown */
opt.fnname = "fprintf";
opt.string = s;
opt.maxlen = (size_t)-1;
ret = __printf(&opt, format, arg);
/*
RETURN_SUCCESS(the number of characters written, not including the final CHAR(\0));
*/
return ret;
}
/***
is equivalent to fn(sprintf), but with a TYPEDEF(va_list)
argument instead of variadic arguments. The argument ARGUMENT(arg) must be
initialized with FUNCTION(va_start) prior to calling THIS(). The
THIS() function does not call FUNCTION(va_end), so the calling function is
responsible for this.
***/
/*
STDC(1)
*/
|
