diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/Wbad-function-cast-1.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/Wbad-function-cast-1.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/Wbad-function-cast-1.c b/gcc-4.9/gcc/testsuite/gcc.dg/Wbad-function-cast-1.c new file mode 100644 index 000000000..4a0547f0b --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/Wbad-function-cast-1.c @@ -0,0 +1,51 @@ +/* Test operation of -Wbad-function-cast. Bug 6980 complained of the + wording of the diagnostic. */ +/* Origin: Joseph Myers <jsm@polyomino.org.uk> */ +/* { dg-do compile } */ +/* { dg-options "-Wbad-function-cast" } */ + +void vf(void); +int if1(void); +char if2(void); +long if3(void); +float rf1(void); +double rf2(void); +_Complex double cf(void); +enum e { E1 } ef(void); +_Bool bf(void); +char *pf1(void); +int *pf2(void); + +void +foo(void) +{ + /* Casts to void types are always OK. */ + (void)vf(); + (void)if1(); + (void)cf(); + (const void)bf(); + /* Casts to the same type or similar types are OK. */ + (int)if1(); + (long)if2(); + (char)if3(); + (float)rf1(); + (long double)rf2(); + (_Complex float)cf(); + (enum f { F1 })ef(); + (_Bool)bf(); + (void *)pf1(); + (char *)pf2(); + /* Casts to types with different TREE_CODE (which is how this + warning has been defined) are not OK, except for casts to void + types. */ + (float)if1(); /* { dg-warning "cast from function call of type 'int' to non-matching type 'float'" } */ + (double)if2(); /* { dg-warning "cast from function call of type 'char' to non-matching type 'double'" } */ + (_Bool)if3(); /* { dg-warning "cast from function call of type 'long int' to non-matching type '_Bool'" } */ + (int)rf1(); /* { dg-warning "cast from function call of type 'float' to non-matching type 'int'" } */ + (long)rf2(); /* { dg-warning "cast from function call of type 'double' to non-matching type 'long int'" } */ + (double)cf(); /* { dg-warning "cast from function call of type 'complex double' to non-matching type 'double'" } */ + (int)ef(); /* { dg-warning "cast from function call of type 'enum e' to non-matching type 'int'" } */ + (int)bf(); /* { dg-warning "cast from function call of type '_Bool' to non-matching type 'int'" } */ + (__SIZE_TYPE__)pf1(); /* { dg-warning "cast from function call of type 'char \\*' to non-matching type '\[^\\n\]*'" } */ + (__PTRDIFF_TYPE__)pf2(); /* { dg-warning "cast from function call of type 'int \\*' to non-matching type '\[^\\n\]*'" } */ +} |