6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-06-30 23:30:28 +00:00
Code Issues Projects Releases Wiki Activity

Make sure that for systems where the string functions are actually macros

Browse Source 
that we undefine the macro before using its name in the definition. This
can happen on Linux if _GNU_SOURCE is defined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17071 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2004-10-17 00:17:54 +00:00
parent 71d3778c0b
commit 2bf0292432
1 changed files with 24 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
runtime/GCCLibraries/libc/string.c
View File

@ -7,12 +7,18 @@
#include <stdlib.h>
#include <string.h>
#ifdef strlen
#undef strlen
#endif
size_t strlen(const char *Str) {
size_t Count = 0;
while (*Str) { ++Count; ++Str; }
return Count;
}
#ifdef strdup
#undef strdup
#endif
char *strdup(const char *str) {
size_t Len = strlen(str);
char *Result = (char*)malloc((Len+1)*sizeof(char));
@ -20,6 +26,9 @@ char *strdup(const char *str) {
return Result;
}
#ifdef strndup
#undef strndup
#endif
char *strndup(const char *str, size_t n) {
size_t Len = strlen(str);
if (Len > n) Len = n;
@ -29,24 +38,36 @@ char *strndup(const char *str, size_t n) {
return Result;
}
#ifdef strcpy
#undef strcpy
#endif
char *strcpy(char *s1, const char *s2) {
char *dest = s1;
while ((*s1++ = *s2++));
return dest;
}
#ifdef strncpy
#undef strncpy
#endif
char *strncpy(char *s1, const char *s2, size_t n) {
char *dest = s1;
while (n-- && (*s1++ = *s2++));
return dest;
}
#ifdef strcat
#undef strcat
#endif
char *strcat(char *s1, const char *s2) {
strcpy(s1+strlen(s1), s2);
return s1;
}
#ifdef strcmp
#undef strcmp
#endif
/* Compare S1 and S2, returning less than, equal to or
greater than zero if S1 is lexicographically less than,
equal to or greater than S2. */
@ -136,6 +157,9 @@ void *memset (void *dstpp, int c, size_t len) {
}
#endif
#ifdef memcpy
#undef memcpy
#endif
void *memcpy(void *dstpp, const void *srcpp, size_t len) {
char *dstp = (char*)dstpp;
char *srcp = (char*) srcpp;