| Richard Trieu | 7eb0b2c | 2014-02-26 01:17:28 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -triple i686-pc-linux-gnu -fsyntax-only -verify %s -Wabsolute-value |
| 2 | // RUN: %clang_cc1 -triple i686-pc-linux-gnu -fsyntax-only %s -Wabsolute-value -fdiagnostics-parseable-fixits 2>&1 | FileCheck %s |
| 3 | |
| 4 | extern "C" int abs(int); |
| 5 | |
| 6 | // Wrong signature |
| 7 | int fabsf(int); |
| 8 | |
| 9 | void test_int(int i, unsigned u, long long ll, float f, double d) { |
| 10 | (void)abs(i); |
| 11 | |
| 12 | // Remove abs call |
| 13 | (void)abs(u); |
| 14 | // expected-warning@-1{{taking the absolute value of unsigned type 'unsigned int' has no effect}} |
| 15 | // expected-note@-2{{remove the call to 'abs' since unsigned values cannot be negative}} |
| 16 | // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:9-[[@LINE-3]]:12}:"" |
| 17 | |
| 18 | int llabs; |
| 19 | (void)llabs; |
| 20 | // Conflict in names, suggest qualified name |
| 21 | (void)abs(ll); |
| 22 | // expected-warning@-1{{absolute value function 'abs' given an argument of type 'long long' but has parameter of type 'int' which may cause truncation of value}} |
| 23 | // expected-note@-2{{use function '::llabs' instead}} |
| 24 | // expected-note@-3{{please include the header <stdlib.h> or explicitly provide a declaration for 'llabs'}} |
| 25 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:9-[[@LINE-4]]:12}:"::llabs" |
| 26 | |
| 27 | // Conflict in names, no notes |
| 28 | (void)abs(f); |
| 29 | // expected-warning@-1{{using integer absolute value function 'abs' when argument is of floating point type}} |
| 30 | |
| 31 | // Suggest header. |
| 32 | (void)abs(d); |
| 33 | // expected-warning@-1{{using integer absolute value function 'abs' when argument is of floating point type}} |
| 34 | // expected-note@-2{{use function 'fabs' instead}} |
| 35 | // expected-note@-3{{please include the header <math.h> or explicitly provide a declaration for 'fabs'}} |
| 36 | // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:9-[[@LINE-4]]:12}:"fabs" |
| 37 | } |