Nov 27, 2024 · #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 #pragma …

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 …

May 21, 2014 · #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 …

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 …

#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 …

Aug 14, 2010 · #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 …

Sep 24, 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).

Mar 15, 2012 · The syntax for the pragma in C could be: #pragma DATA_SECTION (symbol, "section name"); The syntax for the pragma in C++ could be: #pragma DATA_SECTION …

According to wikipedia, some compilers optimize pragma once, some (like gcc) also optimize include guards. My gut says go with whatever system your code is already using. I use BOTH …

Mar 30, 2013 · For Reducing the warning errors I used #pragma Warning disable . #pragma warning restore front and back of the problematic code. I have doubt that in my final build I …