Predefined macro names
WebIf any of the pre-defined macro names in this subclause, or the identifier defined, is the subject of a #define or a #undef preprocessing directive, the behavior is undefined. Any … WebJan 10, 2024 · Whenever the compiler encounters the macro, it replaces the macro name with the macro value. Two macros could not have the same name. The syntax of the …
Predefined macro names
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WebLX predefined macros for non-persistent values and calculated values also follow a naming standard. Non-persistent values are those not stored in the database. A macro is named … WebApr 4, 2024 · The syntax of a function-like macro invocation is similar to the syntax of a function call: each instance of the macro name followed by a ... The following macro …
Web6.50 Function Names as Strings. GCC provides three magic constants that hold the name of the current function as a string. In C++11 and later modes, all three are treated as constant expressions and can be used in constexpr constexts. The first of these constants is __func__, which is part of the C99 standard: . The identifier __func__ is implicitly declared … WebExamples of predefined macros. This example illustrates use of the __FUNCTION__ and the __C99__FUNC__ macros to test for the availability of the C99 __func__ identifier to return the current function name:
Webof • • • • • ... WebIf any of the pre-defined macro names in this subclause, or the identifier defined, is the subject of a #define or a #undef preprocessing directive, the behavior is undefined. Any …
Web15.11 Predefined macro names [cpp.predefined] The integer literal 202402L. Future revisions of C++ will replace the value of this macro with a greater value. The names listed …
WebThe following macro names are predefined in any translation unit: __STDC__. expands to the integer constant 1. This macro is intended to indicate a conforming implementation … st faiths community hallWebMar 8, 2024 · In Visual Studio , those are predefined macros that can be used in your code. As the name suggest they expand into the filename of the source code and the exact line in a given translation unit. To control the __FILE__ macro you can use the compiler option /FC. st faiths adult education maidstoneWebMacros related to the Enterprise Metal C for z/OS® compiler are always predefined, and they are protected, which means that the compiler will issue a warning if you try to undefine or redefine them. You can specify the SHOWMACROS(PRE) compiler option to view predefined macro definitions in preprocessed output. st faiths manor wakefieldWebA macro is a fragment of code that is given a name. You can define a macro in C using the #define preprocessor directive. Here's an example. #define c 299792458 // speed of light. … st faiths my school portalWebWhen defined, the macros are expanded to the specified values by the preprocessor before compilation. The predefined macros take no arguments and can't ... __FUNCTION__ … st faiths church newton longvilleWebThe __DATE__ macro contains a string of the form month/day/year when the source file is compiled into object code. The __TIME__ macro contains the time in form of … st faiths newsletterWeb3.7.1 Standard Predefined Macros. The standard predefined macros are specified by the relevant language standards, so they are available with all compilers that implement those … st faiths anglican church