WebFeb 17, 2024 · A macro such as #define X (name) [name] = #name, is cryptic by itself, but when given the context of the surrounding array initializer list, one can easier understand the meaning. "X macros" can also be used to manually unroll loops: #define X (name) puts (NUMBER_STR [name]); NUMBER_LIST #undef X

c++ - I want to use macros or template metaprogramming …

WebA good alternative would be to define a cmake option: OPTION(DEFINE_MACRO "Option description" ON) # Enabled by default . Followed by a condition: IF(DEFINE_MACRO) ADD_DEFINITIONS(-DMACRO) ENDIF(DEFINE_MACRO) Then you can turn that option ON/OFF via command line with cmake using the -D flag. Example: cmake … WebMacros are categorized into two main groups: object-like macros and function-like macros. Macros are treated as a token substitution early in the compilation process. This means … in flint michigan

Common macros for MSBuild commands and properties

WebApr 12, 2024 · Add a comment 1 Answer Sorted by: 1 You can simply write a wrapper macro that forwards to the existing rules of the vec! macro: macro_rules! intersection { () => { vec! [] }; ($elem:expr; $n:expr) => { vec! [$elem; $n] }; ($ ($x:expr),+ $ (,)?) => { vec! [$ ($x),+] }; } Then you can call your intersection! macro like this, for example: WebFeb 16, 2024 · A macro can refer to a value that's defined by Visual Studio or the MSBuild system, or to a user-defined value. Macros look like $ (macro-name) or % (item-macro-name). They're exposed in the property pages, where you can refer to and modify them by using the Property Editor. Use macros instead of hard-coded values such as directory paths. WebA C++ macro is defined as a section of code that that particular macro value can replace. We can define the macro by using a #define directive. When the compiler goes to the macros … in flood map