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#include <string.h>
void* memset(void* s, int c, size_t n)
{
char* _s = s;
while(n)
{
*_s = c;
_s++; n--;
}
return s;
}
char* strcpy(char* d, const char* s)
{
char* d1 = d;
do
{
*d1 = *s;
if (*s == '\0') return d;
d1++; s++;
} while(1);
}
int strcmp(const char* a, const char* b)
{
while((*a != '\0') && (*b != '\0'))
{
if (*a == *b)
{
a++; b++;
}
else
{
return (*a > *b) ? 1 : -1;
}
}
if (*a == *b)
return 0;
if (*a == '\0')
return -1;
else
return 1;
}
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