diff options
Diffstat (limited to 'gcc/testsuite/gcc.dg/pointer-arith-3.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/pointer-arith-3.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pointer-arith-3.c b/gcc/testsuite/gcc.dg/pointer-arith-3.c new file mode 100644 index 00000000000..f23f677c8b8 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pointer-arith-3.c @@ -0,0 +1,41 @@ +/* Test diagnostics for arithmetic on void and function pointers. + Test with -pedantic. */ +/* Origin: Joseph Myers <joseph@codesourcery.com> */ +/* { dg-do compile } */ +/* { dg-options "-pedantic" } */ + +void *p; +void (*f)(void); + +void +g (void) +{ + p + 0; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + p + 1; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + 0 + p; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + 1 + p; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + p - 0; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + p - 1; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + p += 0; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + p += 1; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + p -= 0; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + p -= 1; /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" } */ + f + 0; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + f + 1; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + 0 + f; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + 1 + f; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + f - 0; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + f - 1; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + f += 0; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + f += 1; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + f -= 0; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + f -= 1; /* { dg-warning "warning: pointer to a function used in arithmetic" } */ + p[0]; /* { dg-warning "warning: dereferencing 'void \\*' pointer" } */ + /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" "array 1" { target *-*-* } 33 } */ + 0[p]; /* { dg-warning "warning: dereferencing 'void \\*' pointer" } */ + /* { dg-warning "warning: pointer of type 'void \\*' used in arithmetic" "array 1" { target *-*-* } 35 } */ + f[0]; /* { dg-error "error: subscripted value is pointer to function" } */ + 0[f]; /* { dg-error "error: subscripted value is pointer to function" } */ + p - p; /* { dg-warning "warning: pointer of type 'void \\*' used in subtraction" } */ + f - f; /* { dg-warning "warning: pointer to a function used in subtraction" } */ +} |