strncat.c: Fix uninitialized var.

	* gcc.c-torture/execute/builtins/lib/strncat.c: Fix uninitialized var.
	* gcc.c-torture/execute/builtins/lib/strpbrk.c: Fix discarded const.
	* gcc.c-torture/execute/builtins/strlen-3.c: Fix uninitialized var.
	* gcc.c-torture/execute/builtins/strncmp.c: Delete unused var.

From-SVN: r97386

gcc/testsuite/ChangeLog

 2005-04-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
+	* gcc.c-torture/execute/builtins/lib/strncat.c: Fix uninitialized var.
+	* gcc.c-torture/execute/builtins/lib/strpbrk.c: Fix discarded const.
+	* gcc.c-torture/execute/builtins/strlen-3.c: Fix uninitialized var.
+	* gcc.c-torture/execute/builtins/strncmp.c: Delete unused var.
+
 	* gcc.c-torture/execute/builtins/abs-1-lib.c,
 	gcc.c-torture/execute/builtins/fputs-lib.c,
 	gcc.c-torture/execute/builtins/lib/fprintf.c,

gcc/testsuite/gcc.c-torture/execute/builtins/lib/strncat.c

@@ -7,7 +7,7 @@ char *
 strncat (char *s1, const char *s2, size_t n)
 {
   char *dest = s1;
-  char c;
+  char c = '\0';
 #ifdef __OPTIMIZE__
   if (inside_main)
     abort();

gcc/testsuite/gcc.c-torture/execute/builtins/lib/strpbrk.c

+extern void abort (void);
 extern int inside_main;
 
 char *
 strpbrk(const char *s1, const char *s2)
 {
-  char *p;
+  const char *p;
 #ifdef __OPTIMIZE__
   if (inside_main)
     abort ();
@@ -12,7 +13,7 @@ strpbrk(const char *s1, const char *s2)
     {
       for (p = s2; *p; p++)
 	if (*s1 == *p)
-	  return s1;
+	  return (char *)s1;
       s1++;
     }
   return 0;

gcc/testsuite/gcc.c-torture/execute/builtins/strlen-3.c

@@ -18,8 +18,10 @@ int x = 6;
 void
 main_test(void)
 {
+#ifdef __OPTIMIZE__
   const char *foo;
   int i;
+#endif
 
   if (strlen (bar) != 13)
     abort ();

gcc/testsuite/gcc.c-torture/execute/builtins/strncmp.c

@@ -14,7 +14,6 @@ main_test (void)
 {
   const char *const s1 = "hello world";
   const char *s2, *s3;
-  int n = 6, x;
   
   if (strncmp (s1, "hello world", 12) != 0)
     abort();