XIEITE_LANG_TYPE_/*???*/, XIEITE_LANG_MAJOR_/*???*/, XIEITE_LANG_MINOR_/*???*/, XIEITE_LANG_PATCH_/*???*/, XIEITE_LANG_EQ(), XIEITE_LANG_LEAST(), XIEITE_LANG_MOST()

 Defined in header <xieite/pp/lang.hpp>

Macros for identifying the current language and its version (major, minor, patch). The macros are not mutually exclusive.


Definitions

 #type 
#define XIEITE_LANG_TYPE_/*???*/ /* boolean integer literal */
#define XIEITE_LANG_MAJOR_/*???*/ /* integer literal */
#define XIEITE_LANG_MINOR_/*???*/ /* integer literal */
#define XIEITE_LANG_PATCH_/*???*/ /* integer literal */
Use with C, CPP, CPP_CLI, CPP_CX, CPP_EMBEDDED, CPP_WINRT, CUDA, GLSL, HLSL, METAL, OBJECTIVE_C, or PSSL. See example.

#eq 
#define XIEITE_LANG_EQ(type, major, .../* minor, patch */) /* boolean expression */
Allows two optional arguments for the minor and patch version numbers. Expands to an expression checking whether a language is in use and its version is equal to some value.

#least 
#define XIEITE_LANG_LEAST(type, major, .../* minor, patch */) /* boolean expression */
Expands to an expression checking whether a language is in use and its version is equal to or greater than some value.

#most 
#define XIEITE_LANG_MOST(type, major, .../* minor, patch */) /* boolean expression */
Expands to an expression checking whether a language is in use and its version is equal to or less than some value.


Example

 
int main() {
	std::print("Is current language C++? {}\n", XIEITE_LANG_TYPE_CPP);
}
Possible output: 
Is current language C++? 1
[View in Compiler Explorer]