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Why does each .h file starts with #ifndef #define #endif? We can certainly compil开发者_开发百科e the program without those directives.It\'s a so-called \"include guard\". The purpose is to prevent th
I want to have a constant in my project to change between Lite and Pro version. I don\'t think it is the best way to do it, but I am trying to:
I\'ve been through quite a number of articles on Stack Overflow that answered the question \"How do I pass preprocessor definitions to the compiler from the MSBuild command line,\" and they all respon
I\'m abusing the C preprocessor for my build system to produce a \"readme\" plain-text file and a web page from the same source file. The construction is something like this:
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This question already has answers here: In which step of compilation are comments removed? (2 answers) Closed 5 years ago.
I\'m trying to simplify the deployment of an application.In order to build the final application on an end-user\'s machine, a couple of C files need to be compiled.This means that dozens of header fil
Sometimes when there are errors output by gcc, one will break down the the process for each stage of preprocessing, compilation, assembly, linking by options开发者_运维问答 like -E, -S and -c. Here is
How do I at com开发者_JAVA技巧pile time undefine a compiler macro using gcc. I tried some compile args to gcc like -D but I can\'t get to see the \"not defined\" message.
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