blob: eb34445d25fa13091791f81a8386d4d4dd24b00a (
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
36
37
38
39
40
41
42
43
|
#include <shared/mem.h>
#include <stdint.h>
int memcmp(const void *s1, const void *s2, size_t n) {
const unsigned char *c1 = s1, *c2 = s2;
for (size_t i = 0; i < n; i++) {
if (c1[i] != c2[i]) {
if (c1[i] < c2[i]) return -1;
else return 1;
}
}
return 0;
}
void *memcpy(void *dest, const void *src, size_t n) {
char *d = dest;
const char *s = src;
for (size_t i = 0; i < n; i++)
d[i] = s[i];
return dest;
}
void *memset(void *s, int c, size_t n) {
uint8_t *s2 = s;
for (size_t i = 0; i < n; n++)
s2[i] = c;
return s;
}
int strcmp(const char *s1, const char *s2) {
while (*s1 && *s1 == *s2) {
s1++; s2++;
}
if (*s1 == *s2) return 0;
if (*s1 < *s2) return -1;
else return 1;
}
size_t strlen(const char *s) {
size_t c = 0;
while (*s++) c++;
return c;
}
|
