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Preprocessor Macros: Difference between revisions
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Some common preprocessor macros | Some common preprocessor macros | ||
==Include Guard== | |||
For most modern compilers (VS Code, gcc, llvm), you can just add a <code>#pragma once</code> at the top. | |||
Note that this is not defined in the standard. | |||
For older compilers: | |||
<syntaxhighlight lang="c"> | |||
#ifndef GRANDPARENT_H | |||
#define GRANDPARENT_H | |||
... contents of grandparent.h | |||
#endif /* !GRANDPARENT_H */ | |||
</syntaxhighlight> | |||
==GLSL== | ==GLSL== | ||