ciabatta/src/wchar.c

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2022-08-05 04:00:54 +00:00
size_t wcslen(const wchar_t *s) {
size_t len = 0;
while(s[len++]);
return len;
}
wchar_t *wmemset(wchar_t *str, wchar_t c, size_t n) {
while(n--) {
str[n] = c;
}
return str;
}
wchar_t *wmemmove(wchar_t *dst, wchar_t const *src, size_t n) {
if(dst != src) {
if(dst < src) {
for (size_t i = n; i--;) dst[i] = src[i];
} else {
for (size_t i = 0; i < n; i++) dst[i] = src[i];
}
}
return dst;
}
wchar_t *wmemcpy(wchar_t *restrict dst, wchar_t const *restrict src, size_t n) {
while(n--) dst[n] = src[n];
return (wchar_t *)dst;
}
wchar_t *wcscpy(wchar_t *restrict dst, wchar_t const *restrict src) {
size_t i;
for(i = 0; src[i]; ++i) {
dst[i] = src[i];
}
dst[i] = 0;
return (wchar_t *)dst;
}
wchar_t *wcsncpy(wchar_t *restrict dst, wchar_t const *restrict src, size_t n) {
size_t i;
for(i = 0; i != n && src[i]; ++i) {
dst[i] = src[i];
}
dst[i] = 0;
return (wchar_t *)dst;
}
wchar_t *wcscat(wchar_t *restrict dst, wchar_t const *restrict src) {
size_t dst_len = wcslen(dst);
size_t i;
for(i = 0; src[i]; ++i) {
dst[dst_len + i] = src[i];
}
dst[dst_len + i] = 0;
return (wchar_t *)dst;
}
wchar_t *wcsncat(wchar_t *restrict dst, wchar_t const *restrict src, size_t n) {
size_t dst_len = wcslen(dst);
size_t i;
for(i = 0; i != n && src[i]; ++i) {
dst[dst_len + i] = src[i];
}
dst[dst_len + i] = 0;
return (wchar_t *)dst;
}
int wcscmp(wchar_t const *s1, wchar_t const *s2) {
size_t i;
for(i = 0; s1[i] && s2[i]; ++i) {
if(s1[i] != s2[i]) break;
}
if(s1[i] < s2[i]) return -1;
if(s1[i] > s2[i]) return 1;
return 0;
}
int wcsncmp(wchar_t const *s1, wchar_t const *s2, size_t n) {
size_t i;
for(i = 0; i != n && s1[i] && s2[i]; ++i) {
if(s1[i] != s2[i]) break;
}
if(s1[i] < s2[i]) return -1;
if(s1[i] > s2[i]) return 1;
return 0;
}
int wmemcmp(wchar_t const *s1, wchar_t const *s2, size_t n) {
size_t i;
for(i = 0; i != n; ++i) {
if(s1[i] != s2[i]) break;
}
if(s1[i] < s2[i]) return -1;
if(s1[i] > s2[i]) return 1;
return 0;
}