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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.dg/] [pointer-arith-2.c] - Rev 689
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/* Test diagnostics for arithmetic on void and function pointers. Test with -Wpointer-arith. */ /* Origin: Joseph Myers <joseph@codesourcery.com> */ /* { dg-do compile } */ /* { dg-options "-Wpointer-arith" } */ void *p; void (*f)(void); void g (void) { p + 0; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ p + 1; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ 0 + p; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ 1 + p; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ p - 0; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ p - 1; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ p += 0; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ p += 1; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ p -= 0; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ p -= 1; /* { dg-warning "pointer of type 'void \\*' used in arithmetic" } */ f + 0; /* { dg-warning "pointer to a function used in arithmetic" } */ f + 1; /* { dg-warning "pointer to a function used in arithmetic" } */ 0 + f; /* { dg-warning "pointer to a function used in arithmetic" } */ 1 + f; /* { dg-warning "pointer to a function used in arithmetic" } */ f - 0; /* { dg-warning "pointer to a function used in arithmetic" } */ f - 1; /* { dg-warning "pointer to a function used in arithmetic" } */ f += 0; /* { dg-warning "pointer to a function used in arithmetic" } */ f += 1; /* { dg-warning "pointer to a function used in arithmetic" } */ f -= 0; /* { dg-warning "pointer to a function used in arithmetic" } */ f -= 1; /* { dg-warning "pointer to a function used in arithmetic" } */ p[0]; /* { dg-warning "dereferencing 'void \\*' pointer" } */ /* { dg-warning "pointer of type 'void \\*' used in arithmetic" "array 1" { target *-*-* } 33 } */ 0[p]; /* { dg-warning "dereferencing 'void \\*' pointer" } */ /* { dg-warning "pointer of type 'void \\*' used in arithmetic" "array 1" { target *-*-* } 35 } */ f[0]; /* { dg-error "subscripted value is pointer to function" } */ 0[f]; /* { dg-error "subscripted value is pointer to function" } */ p - p; /* { dg-warning "pointer of type 'void \\*' used in subtraction" } */ f - f; /* { dg-warning "pointer to a function used in subtraction" } */ }