scc

commit f1aa70a21a4b85ef7f90510232de9516638e4255
parent a3a90734a04b065b429ab4810068a4f74386272e
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Thu, 30 May 2019 18:14:49 +0100

Revert "[dev] Add memrchr"

This reverts commit a3a90734a04b065b429ab4810068a4f74386272e.
Memrchr is a non standard function.

Diffstat:
M
include/string.h
 | 
1
-
M
src/libc/string/Makefile
 | 
1
-
D
src/libc/string/memrchr.c
 | 
13
-------------

3 files changed, 0 insertions(+), 15 deletions(-)
diff --git a/include/string.h b/include/string.h
@@ -19,7 +19,6 @@ extern int strcoll(const char *s1, const char *s2);
 extern int strncmp(const char *s1, const char *s2, size_t n);
 extern size_t strxfrm(char * restrict s1, const char * restrict s2, size_t n);
 extern void *memchr(const void *s, int c, size_t n);
-extern void *memrchr(const void *s, int c, size_t n);
 extern char *strchr(const char *s, int c);
 extern size_t strcspn(const char *s1, const char *s2);
 extern char *strpbrk(const char *s1, const char *s2);
diff --git a/src/libc/string/Makefile b/src/libc/string/Makefile
@@ -4,7 +4,6 @@ include $(PROJECTDIR)/scripts/rules.mk
 include ../rules.mk
 
 OBJS = memchr.o\
-       memrchr.o \
        memcmp.o\
        memcpy.o\
        memmove.o\
diff --git a/src/libc/string/memrchr.c b/src/libc/string/memrchr.c
@@ -1,13 +0,0 @@
-#include <string.h>
-
-#undef memrchr
-
-void *
-memrchr(const void *s, int c, size_t n)
-{
-	unsigned char *p = s;
-
-	for (p += n-1; n > 0 && *p != c; --p)
-		n--;
-	return (n == 0) ? NULL : p;
-}