blob: aeb0397f9ef944c0a0204da44f2853e7104567a3 (
plain) (
blame)
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
|
#include <inttypes.h>
#include <errno.h>
#include <ctype.h>
intmax_t strtoimax(const char *s1, char **p, int base)
{
const unsigned char *s = (const void *)s1;
int sign = 0;
uintmax_t x;
/* Initial whitespace */
for (; isspace(*s); s++);
/* Optional sign */
if (*s == '-') sign = *s++;
else if (*s == '+') s++;
x = strtoumax((const void *)s, p, base);
if (x > INTMAX_MAX) {
if (!sign || -x != INTMAX_MIN)
errno = ERANGE;
return sign ? INTMAX_MIN : INTMAX_MAX;
}
return sign ? -x : x;
}
|