diff options
Diffstat (limited to 'compilerplugins/clang/test/intvsfloat.cxx')
-rw-r--r-- | compilerplugins/clang/test/intvsfloat.cxx | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/compilerplugins/clang/test/intvsfloat.cxx b/compilerplugins/clang/test/intvsfloat.cxx new file mode 100644 index 000000000..4746873e7 --- /dev/null +++ b/compilerplugins/clang/test/intvsfloat.cxx @@ -0,0 +1,62 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + */ + +static const float PI = 3.4; +struct Class1 +{ + float getFloat() const { return 1.5; } + int getInt() const { return 1; } + static constexpr float PI = 3.4; + static constexpr float E() { return 3.4; } +}; + +void func1(Class1 const& class1) +{ + // expected-error@+1 {{comparing integer to float constant, can never be true [loplugin:intvsfloat]}} + if (1 == PI) + return; + // expected-error@+1 {{comparing integer to float constant, can never be true [loplugin:intvsfloat]}} + if (1 == class1.PI) + return; + // expected-error@+1 {{comparing integer to float constant, can never be true [loplugin:intvsfloat]}} + if (true == class1.PI) + return; + if (1 == class1.getInt()) // no warning expected + return; + // expected-error@+1 {{comparing integer to float constant, can never be true [loplugin:intvsfloat]}} + if (1 == class1.E()) + return; + // expected-error@+1 {{comparing integer to float constant, can never be true [loplugin:intvsfloat]}} + if (true == class1.E()) + return; + if (1 == class1.getFloat()) // no warning expected + return; +} + +void func2(Class1 const& class1) +{ + // expected-error@+1 {{assigning constant float value to int truncates data [loplugin:intvsfloat]}} + int i0 = PI; + (void)i0; + // expected-error@+1 {{assigning constant float value to int truncates data [loplugin:intvsfloat]}} + int i1 = class1.PI; + (void)i1; + // expected-error@+1 {{assigning constant float value to int truncates data [loplugin:intvsfloat]}} + int i2 = class1.E(); + (void)i2; + int i3 = class1.getFloat(); // no warning expected + (void)i3; + int i4 = class1.getInt(); // no warning expected + (void)i4; + // expected-error@+1 {{assigning constant float value to int truncates data [loplugin:intvsfloat]}} + bool b1 = class1.E(); + (void)b1; +} + +/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */ |