Properly check length modfiers for %n in format strings.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161408 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/format-strings.c b/test/Sema/format-strings.c
index aff996f..86b9296 100644
--- a/test/Sema/format-strings.c
+++ b/test/Sema/format-strings.c
@@ -90,6 +90,33 @@
char *b;
printf("%n", b); // expected-warning{{format specifies type 'int *' but the argument has type 'char *'}}
printf("%n", &x); // no-warning
+
+ printf("%hhn", (signed char*)0); // no-warning
+ printf("%hhn", (char*)0); // no-warning
+ printf("%hhn", (unsigned char*)0); // no-warning
+ printf("%hhn", (int*)0); // expected-warning{{format specifies type 'signed char *' but the argument has type 'int *'}}
+
+ printf("%hn", (short*)0); // no-warning
+ printf("%hn", (unsigned short*)0); // no-warning
+ printf("%hn", (int*)0); // expected-warning{{format specifies type 'short *' but the argument has type 'int *'}}
+
+ printf("%n", (int*)0); // no-warning
+ printf("%n", (unsigned int*)0); // no-warning
+ printf("%n", (char*)0); // expected-warning{{format specifies type 'int *' but the argument has type 'char *'}}
+
+ printf("%ln", (long*)0); // no-warning
+ printf("%ln", (unsigned long*)0); // no-warning
+ printf("%ln", (int*)0); // expected-warning{{format specifies type 'long *' but the argument has type 'int *'}}
+
+ printf("%lln", (long long*)0); // no-warning
+ printf("%lln", (unsigned long long*)0); // no-warning
+ printf("%lln", (int*)0); // expected-warning{{format specifies type 'long long *' but the argument has type 'int *'}}
+
+ printf("%qn", (long long*)0); // no-warning
+ printf("%qn", (unsigned long long*)0); // no-warning
+ printf("%qn", (int*)0); // expected-warning{{format specifies type 'long long *' but the argument has type 'int *'}}
+
+ printf("%Ln", 0); // expected-warning{{length modifier 'L' results in undefined behavior or no effect with 'n' conversion specifier}}
}
void check_invalid_specifier(FILE* fp, char *buf)