compiler-warnings

问题 I am getting the warning: function used but not defined . I have static __inline__ in header file say a.h . The header file is included in a.c . I would like put all those inline function which are in header files into the .c files. Following code gives the idea of my problem. Orginal code: a.h: static __inline__ function1(){ function definition; } I changed: a.h: static function1(); a.c: #include "a.h" static function1(){ function definition; } On doing above I got the warning: warning:

问题 I am getting the warning: function used but not defined . I have static __inline__ in header file say a.h . The header file is included in a.c . I would like put all those inline function which are in header files into the .c files. Following code gives the idea of my problem. Orginal code: a.h: static __inline__ function1(){ function definition; } I changed: a.h: static function1(); a.c: #include "a.h" static function1(){ function definition; } On doing above I got the warning: warning:

问题 I'm comparing a SmallInt variable with the result of the Ord function. Example: var MySmallInt : SmallInt; begin MySmallInt := 5; if(MySmallInt > Ord('C')) then ShowMessage('True') else ShowMessage('False'); end After doing this, the following warning message is shown (W1023): W1023 Comparing signed and unsigned types - widened both operands Delphi's hint on the Ord function says that it should return a SmallInt and that's why I can't understand what causes the warning message. (I've looked

问题 I'm comparing a SmallInt variable with the result of the Ord function. Example: var MySmallInt : SmallInt; begin MySmallInt := 5; if(MySmallInt > Ord('C')) then ShowMessage('True') else ShowMessage('False'); end After doing this, the following warning message is shown (W1023): W1023 Comparing signed and unsigned types - widened both operands Delphi's hint on the Ord function says that it should return a SmallInt and that's why I can't understand what causes the warning message. (I've looked

问题 I'm wondering if it is possible to suppress compiler specific warnings in Qt-Creator. My g++-4.5 prints: warning: enumeral and non-enumeral type in conditional expression I would like to get rid of it, because it's very annoying. Ubuntu 11.04 x64 g++-4.5 QtCreator 2.01 Qt 4.7 Thank you! 回答1: You need to use this: QMAKE_CXXFLAGS += -Wno-enum-compare if you get a warning that ends in -Wenum-compare , for example. Also, note that some warnings cannot be suppressed as per the GCC documentation

问题 I'm getting a CUDA warning saying ptxas warning : Stack size for entry function '_Z13a_test_kernelv' cannot be statically determined. Now, I know what it means, and there's a SO question about why it happens. What I want to suppress the warning (when compiling with nvcc 10.x). Can I? If so, where exactly do I put the warning suppression #pragma for this? 回答1: Add -Xptxas -suppress-stack-size-warning when compiling with nvcc. 来源： https://stackoverflow.com/questions/59328507/suppress-stack-size

问题 Couldn't find any documentation on -Wno-four-char-constants , however I suspect that it is similar to -Wno-multichar . Am I correct? 回答1: They're related but not the same thing. Compiling with the -Wall --pedantic flags, the assignment: int i = 'abc'; produces: warning: multi-character character constant [-Wmultichar] with both GCC and CLANG, while: int i = 'abcd'; produces: GCC warning: multi-character character constant [-Wmultichar] CLANG warning: multi-character character constant [-Wfour

问题 This question already has answers here : Disable warning messages in GCC through header files? (10 answers) Closed 5 years ago . everytime i try to input my string using gets() function, my compiler gives me warning like shown below. how to get rid of this. what am i doing wrong? test.c:27:2: warning: ‘gets’ is deprecated (declared at /usr/include/stdio.h:638) [-Wdeprecated-declarations] gets(temp); ^ 回答1: Use fgets instead: fgets(temp, sizeof(temp), stdin); gets is deprecated because it's

问题 Is there a "call stack" for compiler errors in Visual Studio 2005 (C++)? For example, I am using a boost::scoped_ptr as the value in a QHash. This is however causing the following compile error: 1>c:\qt\include\qtcore\../../src/corelib/tools/qhash.h(743) : error C2248: 'boost::scoped_ptr<T>::operator =' : cannot access private member declared in class 'boost::scoped_ptr<T>' From the build output I know which of my source files is causing the error and the line number in the qhash.h that is

问题 I'm trying to find unused functions in my codebase by using GCC's -Wunused-function flag. As I would expect, compiling the below code with gcc -Wall -Wunused-function main.cpp prints an unused variable warning: warning: unused variable ‘x’ [-Wunused-variable] However, the compiler doesn't give an unused-function warning. What do I have to do to make GCC notice the unused function foo() ? // main.cpp void foo(){ } //should (but doesn't) trigger 'unused function' warning int main (int argc,