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| author | Martin Sebor <msebor@redhat.com> | 2017-01-28 00:09:15 +0000 |
|---|---|---|
| committer | Martin Sebor <msebor@gcc.gnu.org> | 2017-01-27 17:09:15 -0700 |
| commit | eb339366496c247f8d9667c58922eac8a870222b (patch) | |
| tree | aa7244f6c38a1687a364a85a09a97954464bef5a | |
| parent | 1f44286be085afc84e107f02c6e436c99eb69a3d (diff) | |
| download | gcc-eb339366496c247f8d9667c58922eac8a870222b.zip gcc-eb339366496c247f8d9667c58922eac8a870222b.tar.gz gcc-eb339366496c247f8d9667c58922eac8a870222b.tar.bz2 | |
builtin-sprintf-warn-1.c: Add test cases.
gcc/testsuite/ChangeLog:
* gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Add test cases.
From-SVN: r244999
| -rw-r--r-- | gcc/testsuite/ChangeLog | 4 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c | 18 |
2 files changed, 20 insertions, 2 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index eb63091..f4b6aa0 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,7 @@ +2017-01-27 Martin Sebor <msebor@redhat.com> + + * gcc.dg/tree-ssa/builtin-sprintf-warn-1.c: Add test cases. + 2017-01-27 Bernd Schmidt <bschmidt@redhat.com> PR rtl-optimization/79194 diff --git a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c index 0f3d423..9955326 100644 --- a/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c +++ b/gcc/testsuite/gcc.dg/tree-ssa/builtin-sprintf-warn-1.c @@ -76,10 +76,24 @@ int dummy___vsnprintf_chk (char*, size_t, int, size_t, const char*, va_list); /* Macro to verify that calls to __builtin_sprintf (i.e., with no size argument) issue diagnostics by correctly determining the size of the destination buffer. */ -#define T(size, fmt, ...) \ - (FUNC (sprintf) (buffer (size), fmt, __VA_ARGS__), \ +#define T(size, ...) \ + (FUNC (sprintf) (buffer (size), __VA_ARGS__), \ sink (buffer, ptr)) +/* Exercise the "%%" directive. */ + +void test_sprintf_percent (void) +{ + T (-1, "%%"); + T ( 0, "%%"); /* { dg-warning ".%%. directive writing 1 byte into a region of size 0" } */ + T ( 1, "%%"); /* { dg-warning "writing a terminating nul past the end" } */ + T ( 2, "%%"); + T ( 2, "%%%%"); /* { dg-warning "writing a terminating nul past the end" } */ + T ( 3, "%%%%"); + T ( 3, "%%X%%"); /* { dg-warning "writing a terminating nul past the end" } */ + T ( 4, "%%X%%"); +} + /* Exercise the "%c" and "%lc" directive with constant arguments. */ void test_sprintf_c_const (void) |