長巨集可能難以讀取。 Visual Studio 現在可以展開 C 和 C++ 巨集。 您可以在剪貼簿上取得已展開巨集外觀的複本、將巨集內嵌取代為其展開,並逐步展開巨集,以查看其在每個展開階段的外觀。 在本文中,您會試驗所有這些功能。 必要條件 Visual Studio 17.5 版或更新版本 ...
Compiler warning (level 1) C5104 found 'string1#string2' in macro replacement list, did you mean 'string1""#string2'? Compiler warning (level 1) C5105 macro expansion producing 'defined' has undefined behavior Compiler warning (level 1) C5106 macro redefined with different parameter ...
There are basically two pre-processor Macro Expansion directives:#defineand#undef 1)#define- defining a macro #definecreates/define a macro. Defining a simple macro A macro definition has following form: #definemacro_namecode_fragment Here, ...
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-fast acts like a macro expansion on the command line. Therefore, you can override the optimization level and code generation option aspects by following -fast with the desired optimization level or code generation option. Compiling with the -fast -xO4 pair is like compiling with the -xO2 -...
HideSet prevent T from duplicate expansion of the same macro Tag is defined below:{ None, Placemarker, Identifier, Others }where: None indicates the token is the concatenation of two and its category not yet determined Placemarker indicates an empty token with nothing in its Value Identifier in...
If using autotools, thePKG_CHECK_MODULESmacro can be used to detect the presence oflibprotobuf-c. Add the following line to yourconfigure.acfile: PKG_CHECK_MODULES([PROTOBUF_C], [libprotobuf-c >= 1.0.0]) This will place compiler flags in thePROTOBUF_C_CFLAGSvariable and linker flags ...
J std::byte is enabled by /std:c++17 or later, but because it can conflict with the Windows SDK headers in some cases, it has a fine-grained opt-out macro. To disable it, define _HAS_STD_BYTE as 0.K MSVC doesn't support the _Complex keyword or native complex types. The ...
Sed strips __tmp suffix from parameter names used to avoid macro name conflicts. Grep strips ); to remove redundant forward declarations and sed then adds ; to make each line a valid C prototype. The above is not guaranteed to always work as output may change, but it should go a long ...