diff options
| author | Ted Kremenek <kremenek@apple.com> | 2011-09-29 05:52:16 +0000 |
|---|---|---|
| committer | Ted Kremenek <kremenek@apple.com> | 2011-09-29 05:52:16 +0000 |
| commit | 6e302b2e6e8912a2e92ee035b6412a5d098ade1c (patch) | |
| tree | e689eefa31eea2add91bf16cacb4eef19f9892b4 /clang/test/Sema/format-strings.c | |
| parent | dd1904e7a67682d4620b74287d3438ef7e618460 (diff) | |
| download | bcm5719-llvm-6e302b2e6e8912a2e92ee035b6412a5d098ade1c.tar.gz bcm5719-llvm-6e302b2e6e8912a2e92ee035b6412a5d098ade1c.zip | |
Do not warn about empty format strings when there are no data arguments. Fixes <rdar://problem/9473155>.
llvm-svn: 140777
Diffstat (limited to 'clang/test/Sema/format-strings.c')
| -rw-r--r-- | clang/test/Sema/format-strings.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/clang/test/Sema/format-strings.c b/clang/test/Sema/format-strings.c index 20c665b978b..6b5f7e2c266 100644 --- a/clang/test/Sema/format-strings.c +++ b/clang/test/Sema/format-strings.c @@ -87,7 +87,12 @@ void check_empty_format_string(char* buf, ...) va_list ap; va_start(ap,buf); vprintf("",ap); // expected-warning {{format string is empty}} - sprintf(buf,""); // expected-warning {{format string is empty}} + sprintf(buf, "", 1); // expected-warning {{format string is empty}} + + // Don't warn about empty format strings when there are no data arguments. + // This can arise from macro expansions and non-standard format string + // functions. + sprintf(buf, ""); // no-warning } void check_wide_string(char* b, ...) |
