-Wformat-non-iso: warn about positional arguments (pr12017)

This renames the -Wformat-non-standard flag to -Wformat-non-iso,
rewords the current warnings a bit (pointing out that a format string
is not supported by ISO C rather than being "non standard"),
and adds a warning about positional arguments.

llvm-svn: 152403

1 files changed, 6 insertions, 6 deletions

diff --git a/clang/test/Sema/format-strings-c90.c b/clang/test/Sema/format-strings-c90.c
index 63d58532cb8..66ca5073475 100644
--- a/clang/test/Sema/format-strings-c90.c
+++ b/clang/test/Sema/format-strings-c90.c
@@ -5,8 +5,8 @@ int scanf(const char * restrict, ...);
 int printf(const char *restrict, ...);
 
 void foo(char **sp, float *fp, int *ip) {
-  scanf("%as", sp); /* expected-warning{{'a' is a non-standard length modifier}} */
-  scanf("%a[abc]", sp); /* expected-warning{{'a' is a non-standard length modifier}} */
+  scanf("%as", sp); /* expected-warning{{'a' length modifier is not supported by ISO C}} */
+  scanf("%a[abc]", sp); /* expected-warning{{'a' length modifier is not supported by ISO C}} */
 
   /* TODO: Warn that the 'a' conversion specifier is a C99 feature. */
   scanf("%a", fp);
@@ -21,10 +21,10 @@ void foo(char **sp, float *fp, int *ip) {
 
   /* Test argument type check for the 'a' length modifier. */
   scanf("%as", fp); /* expected-warning{{format specifies type 'char **' but the argument has type 'float *'}}
-                       expected-warning{{'a' is a non-standard length modifier}} */
+                       expected-warning{{'a' length modifier is not supported by ISO C}} */
   scanf("%aS", fp); /* expected-warning{{format specifies type 'wchar_t **' (aka 'int **') but the argument has type 'float *'}}
-                       expected-warning{{'a' is a non-standard length modifier}}
-                       expected-warning{{'S' is a non-standard conversion specifier}} */
+                       expected-warning{{'a' length modifier is not supported by ISO C}}
+                       expected-warning{{'S' conversion specifier is not supported by ISO C}} */
   scanf("%a[abc]", fp); /* expected-warning{{format specifies type 'char **' but the argument has type 'float *'}}
-                           expected-warning{{'a' is a non-standard length modifier}} */
+                           expected-warning{{'a' length modifier is not supported by ISO C}} */
 }