1 files changed, 57 insertions, 0 deletions
diff --git a/private/crt32/string/memchr.c b/private/crt32/string/memchr.c
new file mode 100644
index 000000000..b79097e79
--- /dev/null
+++ b/private/crt32/string/memchr.c
@@ -0,0 +1,57 @@
+/***
+*memchr.c - search block of memory for a given character
+*
+*	Copyright (c) 1985-1991, Microsoft Corporation. All rights reserved.
+*
+*Purpose:
+*	defines memchr() - search memory until a character is
+*	found or a limit is reached.
+*
+*Revision History:
+*	05-31-89   JCR	C version created.
+*	02-27-90   GJF	Fixed calling type, #include <cruntime.h>, fixed
+*			copyright.
+*	08-14-90   SBM	Compiles cleanly with -W3, removed now redundant
+*			#include <stddef.h>
+*	10-01-90   GJF	New-style function declarator. Also, rewrote expr. to
+*			avoid using cast as an lvalue.
+*       04-26-91  SRW   Removed level 3 warnings
+*
+*******************************************************************************/
+
+#include <cruntime.h>
+#include <string.h>
+
+/***
+*char *memchr(buf, chr, cnt) - search memory for given character.
+*
+*Purpose:
+*	Searches at buf for the given character, stopping when chr is
+*	first found or cnt bytes have been searched through.
+*
+*Entry:
+*	void *buf  - memory buffer to be searched
+*	int chr    - character to search for
+*	size_t cnt - max number of bytes to search
+*
+*Exit:
+*	returns pointer to first occurence of chr in buf
+*	returns NULL if chr not found in the first cnt bytes
+*
+*Exceptions:
+*
+*******************************************************************************/
+
+void * _CALLTYPE1 memchr (
+	const void * buf,
+	int chr,
+	size_t cnt
+	)
+{
+	while ( cnt && *(char *)buf != (char)chr ) {
+		buf = (char *)buf + 1;
+		cnt--;
+	}
+
+	return(cnt ? (void *)buf : NULL);
+}