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Diffstat (limited to 'platform/common/libc/string.c')
-rw-r--r--platform/common/libc/string.c22
1 files changed, 13 insertions, 9 deletions
diff --git a/platform/common/libc/string.c b/platform/common/libc/string.c
index cb467a6b..9c094458 100644
--- a/platform/common/libc/string.c
+++ b/platform/common/libc/string.c
@@ -12,12 +12,13 @@
* bugs as well. Use any optimized routines from newlib or glibc if required.
*/
-#include <string.h>
+#include <plat/string.h>
int strcmp(const char *a, const char *b)
{
/* search first diff or end of string */
for (; *a == *b && *a != '\0'; a++, b++);
+
return *a - *b;
}
@@ -46,7 +47,7 @@ size_t strnlen(const char *str, size_t count)
return ret;
}
-char * strcpy(char * dest,const char *src)
+char *strcpy(char *dest, const char *src)
{
char *ret = dest;
@@ -57,7 +58,7 @@ char * strcpy(char * dest,const char *src)
return ret;
}
-char * strncpy(char * dest,const char *src,size_t count)
+char *strncpy(char *dest, const char *src, size_t count)
{
char *ret = dest;
@@ -68,7 +69,7 @@ char * strncpy(char * dest,const char *src,size_t count)
return ret;
}
-char * strchr(const char * s, int c)
+char *strchr(const char *s, int c)
{
while(*s != '\0' && *s != (char)c)
s++;
@@ -79,7 +80,7 @@ char * strchr(const char * s, int c)
return (char *)s;
}
-char * strrchr(const char * s, int c)
+char *strrchr(const char *s, int c)
{
const char *last = s + strlen(s);
@@ -91,7 +92,7 @@ char * strrchr(const char * s, int c)
else
return (char *)last;
}
-void * memset(void * s,int c,size_t count)
+void *memset(void *s, int c, size_t count)
{
char *temp = s;
@@ -103,7 +104,7 @@ void * memset(void * s,int c,size_t count)
return s;
}
-void * memcpy(void *dest, const void *src, size_t count)
+void *memcpy(void *dest, const void *src, size_t count)
{
char *temp1 = dest;
const char *temp2 = src;
@@ -116,7 +117,7 @@ void * memcpy(void *dest, const void *src, size_t count)
return dest;
}
-void * memmove(void * dest,const void *src,size_t count)
+void *memmove(void *dest, const void *src, size_t count)
{
char *temp1 = (char *)dest;
const char *temp2 = (char *)src;
@@ -138,13 +139,15 @@ void * memmove(void * dest,const void *src,size_t count)
count--;
}
}
+
return dest;
}
-int memcmp(const void * s1,const void * s2,size_t count)
+int memcmp(const void *s1, const void *s2, size_t count)
{
const char *temp1 = s1;
const char *temp2 = s2;
+
for (; count > 0 && (*temp1 == *temp2); count--) {
temp1++;
temp2++;
@@ -166,5 +169,6 @@ void *memchr(const void *s, int c, size_t count)
}
count--;
}
+
return NULL;
}