The process to redefine a Macro is:Macro must be defined. When, you want to redefine the Macro, first of all, undefined the Macro by using #undef preprocessor directive. And, then define the Macro again by using
The compilation options should have worked (IMHO) but apparently the Fortran compiler is pre-processing a portion of the file before sending it on to the FPP preprocessor (the '_' in MACRO_0 being interpreted as a continuation character).As an experiment try this round-about way:Create ...
C/C++ Extension Version: 1.22.11 If using SSH remote, specify OS of remote machine: N/A Bug Summary and Steps to Reproduce Bug Summary: When defining variables using a preprocessor macro, the comment doesn't get shown in the tool tip. Steps to reproduce: #define SBIT(x) int x /// ...
2, 3. ANSI C prohibits a preprocessor macro (#define) from generating further preprocessor directives. So a #define can indeed not expand into a "#pragma asm" or "#if defined()". (This restriction is one of the more awkward points about trying to play nice and use the stand...
The__cpluspluspreprocessor macro is commonly used to report support for a particular version of the C++ standard. Because a lot of existing code appears to depend on the value of this macro matching199711L, the compiler doesn't change the value of the macro unless you explicitly opt in by ...
The /Zc:__STDC__ compiler option implements Standard C conforming behavior for the __STDC__ preprocessor macro, setting it to 1 when compiling C11 and C17 code.The /Zc:__STDC__ option is new in Visual Studio 2022 version 17.2. This option is off by default, but can be enabled ...
Say you want to require that a preprocessor macro is set a particular way: #include <contoso.h> #if CONTOSO_VERSION != 314 #error This header file requires version 314. #endif Okay, if the version isn’t set correctly, you will indeed get the error, but that doesn’t help the user...
You would do this in C by declaring the constant:(int64_t)<value>In Fortran, the equivalent is:<value>_8The only way I know of to do this in a language-agnostic way is to use preprocessor macros. But you would need to key them off of the current language. Hence the need for a ...
The goal is to create a macro which performs some operation each element of a list. Doing that requires recursion, though, which the C preprocessor doesn't allow. Fortunately, there is a workaround. Basic Recursion First, we need a technique for emitting something that looks like a macro ca...
Usemacro nameto create the macro with the specified name. Enter one macro command per line. Use the@character to end the macro. Use the#character at the beginning of a line to enter a comment in the macro. In addition, # is used to identify certain prepro...