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Everywhere: Switch from (void) to [[maybe_unused]] (#4473)
Problem: - `(void)` simply casts the expression to void. This is understood to indicate that it is ignored, but this is really a compiler trick to get the compiler to not generate a warning. Solution: - Use the `[[maybe_unused]]` attribute to indicate the value is unused. Note: - Functions taking a `(void)` argument list have also been changed to `()` because this is not needed and shows up in the same grep command.
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parent
4421d98e30
commit
765936ebae
103 changed files with 219 additions and 362 deletions
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@ -74,7 +74,7 @@ int main(int argc, char** argv, char** envp)
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outln("Global lib variable is {}", *ptr_global);
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// Test getting a method from the library and calling it
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void (*lib_func)(void) = (void (*)(void))dlsym(handle, "global_lib_function");
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void (*lib_func)() = (void (*)())dlsym(handle, "global_lib_function");
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outln("Found global lib function address: {}", lib_func);
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@ -39,12 +39,8 @@
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#include <sys/types.h>
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#include <unistd.h>
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int main(int argc, char** argv, char** env)
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int main([[maybe_unused]] int argc, [[maybe_unused]] char** argv, [[maybe_unused]] char** env)
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{
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(void)argc;
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(void)argv;
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(void)env;
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printf("Well Hello Friends!\n");
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printf("trying to open /etc/fstab for writing..\n");
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int rc = open("/etc/fstab", O_RDWR);
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@ -146,8 +146,7 @@ int main(int argc, char** argv)
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auto& radio1 = radio_button_container.add<GUI::RadioButton>("RadioButton 1");
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radio1.set_checked(true);
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auto& radio2 = radio_button_container.add<GUI::RadioButton>("RadioButton 2");
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(void)radio2;
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[[maybe_unused]] auto& radio2 = radio_button_container.add<GUI::RadioButton>("RadioButton 2");
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auto& radio3 = radio_button_container.add<GUI::RadioButton>("RadioButton 3");
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radio3.set_enabled(false);
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@ -186,13 +185,11 @@ int main(int argc, char** argv)
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auto& checkbox2 = checkbox_container.add<GUI::CheckBox>("CheckBox 2");
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checkbox2.set_enabled(false);
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auto& label1 = label_container.add<GUI::Label>("Label 1");
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(void)label1;
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[[maybe_unused]] auto& label1 = label_container.add<GUI::Label>("Label 1");
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auto& label2 = label_container.add<GUI::Label>("Label 2");
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label2.set_enabled(false);
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auto& spinbox1 = spin_container.add<GUI::SpinBox>();
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(void)spinbox1;
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[[maybe_unused]] auto& spinbox1 = spin_container.add<GUI::SpinBox>();
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auto& spinbox2 = spin_container.add<GUI::SpinBox>();
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spinbox2.set_enabled(false);
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@ -213,8 +210,7 @@ int main(int argc, char** argv)
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auto& button2 = button_vert1_container.add<GUI::Button>("Button 2");
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button2.set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/kill.png"));
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button2.set_enabled(false);
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auto& button3 = button_vert2_container.add<GUI::Button>("\xF0\x9F\x98\x88 Button 3");
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(void)button3;
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[[maybe_unused]] auto& button3 = button_vert2_container.add<GUI::Button>("\xF0\x9F\x98\x88 Button 3");
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auto& button4 = button_vert2_container.add<GUI::Button>("\xF0\x9F\x8D\x86 Button 4");
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button4.set_enabled(false);
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@ -334,8 +330,7 @@ int main(int argc, char** argv)
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horizontal_slider_container2.set_layout<GUI::HorizontalBoxLayout>();
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horizontal_slider_container2.layout()->set_margins({ 4, 4, 4, 4 });
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auto& slider1 = horizontal_slider_container.add<GUI::HorizontalSlider>();
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(void)slider1;
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[[maybe_unused]] auto& slider1 = horizontal_slider_container.add<GUI::HorizontalSlider>();
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auto& slider2 = horizontal_slider_container.add<GUI::HorizontalSlider>();
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slider2.set_enabled(false);
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slider2.set_value(50);
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