Add restrict type-qualifier.

4 files changed, 15 insertions, 14 deletions

diff --git a/lib/libc/regex/regcomp.c b/lib/libc/regex/regcomp.c
index 91de8d7..07c3955 100644
--- a/lib/libc/regex/regcomp.c
+++ b/lib/libc/regex/regcomp.c
@@ -189,8 +189,8 @@ static int never = 0;		/* for use in asserts; shuts lint up */
  */
 int				/* 0 success, otherwise REG_something */
 regcomp(preg, pattern, cflags)
-regex_t *preg;
-const char *pattern;
+regex_t * __restrict preg;
+const char * __restrict pattern;
 int cflags;
 {
 	struct parse pa;
diff --git a/lib/libc/regex/regerror.c b/lib/libc/regex/regerror.c
index eb233d9..9888202 100644
--- a/lib/libc/regex/regerror.c
+++ b/lib/libc/regex/regerror.c
@@ -116,8 +116,8 @@ static struct rerr {
 size_t
 regerror(errcode, preg, errbuf, errbuf_size)
 int errcode;
-const regex_t *preg;
-char *errbuf;
+const regex_t * __restrict preg;
+char * __restrict errbuf;
 size_t errbuf_size;
 {
 	struct rerr *r;
diff --git a/lib/libc/regex/regex.3 b/lib/libc/regex/regex.3
index 857f552..dc0bac8 100644
--- a/lib/libc/regex/regex.3
+++ b/lib/libc/regex/regex.3
@@ -36,7 +36,7 @@
 .\"	@(#)regex.3	8.4 (Berkeley) 3/20/94
 .\" $FreeBSD$
 .\"
-.Dd March 20, 1994
+.Dd October 2, 2002
 .Dt REGEX 3
 .Os
 .Sh NAME
@@ -48,19 +48,20 @@
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
-.In sys/types.h
 .In regex.h
 .Ft int
-.Fn regcomp "regex_t *preg" "const char *pattern" "int cflags"
+.Fo regcomp
+.Fa "regex_t * restrict preg" "const char * restrict pattern" "int cflags"
+.Fc
 .Ft int
 .Fo regexec
-.Fa "const regex_t *preg" "const char *string"
-.Fa "size_t nmatch" "regmatch_t pmatch[]" "int eflags"
+.Fa "const regex_t * restrict preg" "const char * restrict string"
+.Fa "size_t nmatch" "regmatch_t pmatch[restrict]" "int eflags"
 .Fc
 .Ft size_t
 .Fo regerror
-.Fa "int errcode" "const regex_t *preg"
-.Fa "char *errbuf" "size_t errbuf_size"
+.Fa "int errcode" "const regex_t * restrict preg"
+.Fa "char * restrict errbuf" "size_t errbuf_size"
 .Fc
 .Ft void
 .Fn regfree "regex_t *preg"
diff --git a/lib/libc/regex/regexec.c b/lib/libc/regex/regexec.c
index a23c61c..abbd9ba 100644
--- a/lib/libc/regex/regexec.c
+++ b/lib/libc/regex/regexec.c
@@ -156,10 +156,10 @@ static int nope = 0;		/* for use in asserts; shuts lint up */
  */
 int				/* 0 success, REG_NOMATCH failure */
 regexec(preg, string, nmatch, pmatch, eflags)
-const regex_t *preg;
-const char *string;
+const regex_t * __restrict preg;
+const char * __restrict string;
 size_t nmatch;
-regmatch_t pmatch[];
+regmatch_t pmatch[__restrict];
 int eflags;
 {
 	struct re_guts *g = preg->re_g;