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author | Alex Auvolat <alex.auvolat@ens.fr> | 2015-02-09 17:39:41 +0100 |
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committer | Alex Auvolat <alex.auvolat@ens.fr> | 2015-02-09 17:40:03 +0100 |
commit | f2c51bc81d2aa618b29ddbeaae5ac1c5308821f0 (patch) | |
tree | fae67a79d5e60128d074550326a05216694a5848 /kernel/lib/string.c | |
parent | a5dfdd2b3fa91a2cda4f807c88bd35928e3c7a61 (diff) | |
download | kogata-f2c51bc81d2aa618b29ddbeaae5ac1c5308821f0.tar.gz kogata-f2c51bc81d2aa618b29ddbeaae5ac1c5308821f0.zip |
Reorganize all.
Diffstat (limited to 'kernel/lib/string.c')
-rw-r--r-- | kernel/lib/string.c | 90 |
1 files changed, 0 insertions, 90 deletions
diff --git a/kernel/lib/string.c b/kernel/lib/string.c deleted file mode 100644 index 9dce27b..0000000 --- a/kernel/lib/string.c +++ /dev/null @@ -1,90 +0,0 @@ -#include <string.h> - - -size_t strlen(const char* str) { - size_t ret = 0; - while (str[ret] != 0) - ret++; - return ret; -} - -char *strchr(const char *str, char c) { - while (*str) { - if (*str == c) return (char*)str; - str++; - } - return NULL; -} - -char *strcpy(char *dest, const char *src) { - memcpy(dest, src, strlen(src) + 1); - return (char*)src; -} - -char *strcat(char *dest, const char *src) { - char *dest2 = dest; - dest2 += strlen(dest) - 1; - while (*src) { - *dest2 = *src; - src++; - dest2++; - } - *dest2 = 0; - return dest; -} - -int strcmp(const char *s1, const char *s2) { - while ((*s1) && (*s1 == *s2)) { - s1++; - s2++; - } - return (*(unsigned char*)s1 - *(unsigned char*)s2); -} - -void *memcpy(void *vd, const void *vs, size_t count) { - uint8_t *dest = (uint8_t*)vd, *src = (uint8_t*)vs; - size_t f = count % 4, n = count / 4, i; - const uint32_t* s = (uint32_t*)src; - uint32_t* d = (uint32_t*)dest; - for (i = 0; i < n; i++) { - d[i] = s[i]; - } - if (f != 0) { - for (i = count - f; i < count; i++) { - dest[i] = src[i]; - } - } - return vd; -} - -void *memmove(void *vd, const void *vs, size_t count) { - uint8_t *dest = (uint8_t*)vd, *src = (uint8_t*)vs; - - if (vd < vs) { - for (size_t i = 0; i < count; i++) - dest[i] = src[i]; - } else { - for (size_t i = 0; i < count; i++) - dest[count - i] = src[count - i]; - } - return vd; -} - -int memcmp(const void *va, const void *vb, size_t count) { - uint8_t *a = (uint8_t*)va; - uint8_t *b = (uint8_t*)vb; - for (size_t i = 0; i < count; i++) { - if (a[i] != b[i]) return (int)a[i] - (int)b[i]; - } - return 0; -} - -void *memset(void *dest, int val, size_t count) { - uint8_t *dest_c = (uint8_t*)dest; - for (size_t i = 0; i < count; i++) { - dest_c[i] = val; - } - return dest; -} - -/* vim: set ts=4 sw=4 tw=0 noet :*/ |