diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/format/c90-scanf-3.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/format/c90-scanf-3.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/format/c90-scanf-3.c b/gcc/testsuite/gcc.dg/format/c90-scanf-3.c new file mode 100644 index 0000000..147a222 --- /dev/null +++ b/gcc/testsuite/gcc.dg/format/c90-scanf-3.c @@ -0,0 +1,21 @@ +/* Test for scanf formats. Formats using extensions to the standard + should be rejected in strict pedantic mode. +*/ +/* Origin: Joseph Myers <jsm28@cam.ac.uk> */ +/* { dg-do compile } */ +/* { dg-options "-std=iso9899:1990 -pedantic -Wformat" } */ + +typedef __WCHAR_TYPE__ wchar_t; + +extern int scanf (const char *, ...); + +void +foo (char **sp, wchar_t **lsp) +{ + /* %a formats for allocation, only recognised in C90 mode, are a + GNU extension. + */ + scanf ("%as", sp); /* { dg-warning "C" "%as" } */ + scanf ("%aS", lsp); /* { dg-warning "C" "%aS" } */ + scanf ("%a[bcd]", sp); /* { dg-warning "C" "%a[]" } */ +} |