Oct 24, 2008 · 65 #pragma is used to do something implementation-specific in C, i.e. be pragmatic for the current context rather than ideologically dogmatic. The one I regularly use is …

Aug 3, 2017 · Pragma directives specify machine- or operating-specific compiler features. The __pragma keyword, which is specific to the Microsoft compiler, enables you to code pragma …

Apr 25, 2011 · In the C and C++ programming languages, #pragma once is a non-standard but widely supported preprocessor directive designed to cause the current source file to be …

Sep 25, 2010 · A pragma (from the Greek word meaning action) is used to direct the actions of the compiler in particular ways, but has no effect on the semantics of a program (in general).

Jun 20, 2024 · The #pragma is a preprocessor directive that provides additional information to the compiler. They are not part of the core language but allow for various compiler-specific …

15 #pragma is a preprocessor directive in its own right; it can't be used within a #define directive. So, this is why __pragma exists: it provides a way for a pragma to be issued from wherever …

Jun 27, 2018 · 226 #pragma comment is a compiler directive which indicates Visual C++ to leave a comment in the generated object file. The comment can then be read by the linker when it …

#pragma pack instructs the compiler to pack structure members with particular alignment. Most compilers, when you declare a struct, will insert padding between members to ensure that they …

For those who would like to use #pragma once and include guards together: If you are not using MSVC, then you won't get much optimization from #pragma once. And you shouldn't put …

#pragma section defines a section class, and optionally, one or two sections in the class. A section class controls the addressing and accessibility of variables and code placed in an …