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Function Pointer Declaration - what does __P do?
Stack Overflow
https://stackoverflow.com › questions › function-pointe...
Stack Overflow
https://stackoverflow.com › questions › function-pointe...
The __P() macro is usually used to support C implementations from the days of K&R C, when there were no prototypes (which were introduced to C with C89).
13. Dez. 2011
Variadic Macros (The C Preprocessor)
GCC, the GNU Compiler Collection
https://gcc.gnu.org › cpp › Varia...
GCC, the GNU Compiler Collection
https://gcc.gnu.org › cpp › Varia...
A macro can be declared to accept a variable number of arguments much as a function can. The syntax for defining the macro is similar to that of a function.
Predefined macros
Microsoft Learn
https://learn.microsoft.com › cpp
Microsoft Learn
https://learn.microsoft.com › cpp
11.06.2024 — Lists and describes the Microsoft C++ compiler predefined preprocessor macros.
Stringification - The C Preprocessor
GCC, the GNU Compiler Collection
https://gcc.gnu.org › cpp › String...
GCC, the GNU Compiler Collection
https://gcc.gnu.org › cpp › String...
When a macro parameter is used with a leading ' # ', the preprocessor replaces it with the literal text of the actual argument, converted to a string constant.
Macros and its types in C
GeeksforGeeks
https://www.geeksforgeeks.org › ...
GeeksforGeeks
https://www.geeksforgeeks.org › ...
09.01.2024 — In C, a macro is a piece of code in a program that is replaced by the value of the macro. Macro is defined by #define directive.
C/C++ Preprocessor Macros
DEV Community
https://dev.to › pauljlucas › cc-p...
DEV Community
https://dev.to › pauljlucas › cc-p...
31.12.2023 — The C Preprocessor originally was a stand-alone program that the C compiler called to “preprocess” source files before compiling them — hence ...
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Macros - C++
Codecademy
https://www.codecademy.com › ...
Codecademy
https://www.codecademy.com › ...
30.06.2022 — A macro is a label defined in the source code that is replaced by its value by the preprocessor before compilation.
Replacing text macros
cppreference.com
https://en.cppreference.com › cpp
cppreference.com
https://en.cppreference.com › cpp
05.08.2024 — The preprocessor supports text macro replacement. Function-like text macro replacement is also supported.
An Absolute Guide to Learn Everything on Macros in C
Simplilearn.com
https://www.simplilearn.com › ...
Simplilearn.com
https://www.simplilearn.com › ...
10.06.2024 — In c programming, we can use macros whenever we want to repeatedly use a single value or a piece of code in our programs.
The C Preprocessor
University of Utah, Math Department
https://www.math.utah.edu › cpp_1
University of Utah, Math Department
https://www.math.utah.edu › cpp_1
The C preprocessor is a macro processor that is used automatically by the C compiler to transform your program before actual compilation.
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