diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/format/ext-7.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/format/ext-7.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/format/ext-7.c b/gcc/testsuite/gcc.dg/format/ext-7.c new file mode 100644 index 00000000000..d9bd0e8ffd0 --- /dev/null +++ b/gcc/testsuite/gcc.dg/format/ext-7.c @@ -0,0 +1,85 @@ +/* Test for scanf formats. %a and %m extensions. */ +/* { dg-do compile } */ +/* { dg-options "-std=gnu89 -Wformat" } */ + +#include "format.h" + +void +foo (char **sp, wchar_t **lsp, int *ip, float *fp, void **pp, double *dp) +{ + /* %a formats for allocation, only recognized in C90 mode, are a + GNU extension. Followed by other characters, %a is not treated + specially. + */ + scanf ("%as", sp); + scanf ("%aS", lsp); + scanf ("%las", dp); + scanf ("%la", lsp); /* { dg-warning "but argument 2 has type" } */ + scanf ("%las", lsp); /* { dg-warning "but argument 2 has type" } */ + scanf ("%a[bcd]", sp); + scanf ("%la[bcd]", dp); + scanf ("%*as"); + scanf ("%*aS"); + scanf ("%*las"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%*a[bcd]"); + scanf ("%*la[bcd]"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%10as", sp); + scanf ("%5aS", lsp); + scanf ("%9las", dp); + scanf ("%25a[bcd]", sp); + scanf ("%48la[bcd]", dp); + scanf ("%*10as"); + scanf ("%*5aS"); + scanf ("%*9las"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%*25a[bcd]"); + scanf ("%*48la[bcd]"); /* { dg-warning "assignment suppression and length modifier" } */ + + /* m assignment-allocation modifier, recognized in both C90 + and C99 modes, is a POSIX and ISO/IEC WDTR 24731-2 extension. */ + scanf ("%ms", sp); + scanf ("%mS", lsp); + scanf ("%mls", lsp); + scanf ("%m[bcd]", sp); + scanf ("%ml[bcd]", lsp); + scanf ("%mc", sp); + scanf ("%mlc", lsp); + scanf ("%mC", lsp); + scanf ("%*ms"); + scanf ("%*mS"); + scanf ("%*mls"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%*m[bcd]"); + scanf ("%*ml[bcd]"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%*mc"); + scanf ("%*mlc"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%*mC"); + scanf ("%10ms", sp); + scanf ("%5mS", lsp); + scanf ("%9mls", lsp); + scanf ("%25m[bcd]", sp); + scanf ("%41ml[bcd]", lsp); + scanf ("%131mc", sp); + scanf ("%27mlc", lsp); + scanf ("%2mC", lsp); + scanf ("%*10ms"); + scanf ("%*5mS"); + scanf ("%*9mls"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%*25m[bcd]"); + scanf ("%*41ml[bcd]"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%*131mc"); + scanf ("%*27mlc"); /* { dg-warning "assignment suppression and length modifier" } */ + scanf ("%*2mC"); + + scanf ("%md", ip); /* { dg-warning "flag used with" } */ + scanf ("%mi", ip); /* { dg-warning "flag used with" } */ + scanf ("%mo", ip); /* { dg-warning "flag used with" } */ + scanf ("%mu", ip); /* { dg-warning "flag used with" } */ + scanf ("%mx", ip); /* { dg-warning "flag used with" } */ + scanf ("%me", fp); /* { dg-warning "flag used with" } */ + scanf ("%mf", fp); /* { dg-warning "flag used with" } */ + scanf ("%mg", fp); /* { dg-warning "flag used with" } */ + scanf ("%mp", pp); /* { dg-warning "flag used with" } */ + + scanf ("%mas", sp); /* { dg-warning "flag together" } */ + scanf ("%maS", lsp); /* { dg-warning "flag together" } */ + scanf ("%ma[bcd]", sp); /* { dg-warning "flag together" } */ +} |