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 int abs(int); 5 6 // Wrong signature 7 int fabsf(int); 8 // expected-warning@-1{{incompatible redeclaration of library function 'fabsf'}} 9 // expected-note@-2{{'fabsf' is a builtin with type 'float (float)'}} 10 test_int(int i,unsigned u,long long ll,float f,double d)11 void test_int(int i, unsigned u, long long ll, float f, double d) { 12 (void)abs(i); 13 14 // Remove abs call 15 (void)abs(u); 16 // expected-warning@-1{{taking the absolute value of unsigned type 'unsigned int' has no effect}} 17 // expected-note@-2{{remove the call to 'abs' since unsigned values cannot be negative}} 18 // CHECK: fix-it:"{{.*}}":{[[@LINE-3]]:9-[[@LINE-3]]:12}:"" 19 20 int llabs; 21 (void)llabs; 22 // Conflict in names, no notes 23 (void)abs(ll); 24 // 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}} 25 26 // Conflict in names, no notes 27 (void)abs(f); 28 // expected-warning@-1{{using integer absolute value function 'abs' when argument is of floating point type}} 29 30 // Suggest header. 31 (void)abs(d); 32 // expected-warning@-1{{using integer absolute value function 'abs' when argument is of floating point type}} 33 // expected-note@-2{{use function 'fabs' instead}} 34 // expected-note@-3{{include the header <math.h> or explicitly provide a declaration for 'fabs'}} 35 // CHECK: fix-it:"{{.*}}":{[[@LINE-4]]:9-[[@LINE-4]]:12}:"fabs" 36 } 37