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