blob: a229739ef3c2933d3e5be1c88d89fb004d3109fe (
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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
#include "string.h"
void *memset( void *s, int c, size_t n )
{
for( size_t i = 0; i < n; i++ ) {
((char *)s)[i] = c;
}
return s;
}
void *memmove( void *d, const void *s, size_t n )
{
const char *ss = (const char *)s;
char *dd = (char *)d;
if( dd == ss ) return d;
if( dd <= ss ) {
while( n-- ) {
*dd++ = *ss++;
}
} else {
dd += n;
ss += n;
while( n-- ) {
*--dd = *--ss;
}
}
return d;
}
size_t strlen( const char *s )
{
size_t len;
const char *p = s;
for( len = 0; *p; len++, p++ );
return len;
}
int strcmp( const char *s1, const char *s2 )
{
while( *s1 && *s2 && *s1 == *s2 ) {
s1++;
s2++;
}
return *s1 - *s2;
}
size_t strlcpy( char *d, const char *s, size_t n )
{
size_t len = 0;
while( len < n && s[len] ) {
d[len] = s[len];
len++;
}
d[len] = '\0';
while( s[len] ) {
len++;
}
if( len >= n ) {
d[n-1] = '\0';
}
return len;
}
|