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#include "string.h"
usize find_char(const char *str, char chr)
{
usize ret = 0;
while (*str != chr && *str != '\0')
str++, ret++;
return ret;
}
u64 parse_num(u8 **str, u8 base, isize size)
{
u64 x = 0;
while (size-- != 0) {
u8 c = **str;
u64 d;
if (c >= '0' && c <= '9')
d = c - '0';
else if (c >= 'a' && c <= 'z')
d = c - 'a';
else if (c >= 'A' && c <= 'z')
d = c - 'A';
else
return x;
if (d >= base)
return x;
(*str)++;
x = x * base + d;
}
return x;
}
usize strlen(const char *str)
{
return find_char(str, '\0');
}
int strcmp(const char *p1, const char *p2)
{
while (*p1 == *p2 && *p1 != '\0')
p1++, p2++;
return *p1 - *p2;
}
int strncmp(const char *p1, const char *p2, usize size)
{
for (usize i = 0; i < size; i++)
if (p1[i] != p2[i])
return p1[i]-p2[i];
return 0;
}
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