In this preprocessor documentation, only the term "macro" is used. When the name of a macro is recognized in the program source text, or in the arguments of certain other preprocessor commands, it's treated as a call to that macro. The macro name is replaced by a copy of the macro ...
// expands Macro with ArgsMap and assign its products with HideSet // NOTE for object-like macro, ArgsMap should be empty // NOTE for variadic arguments, __VA_ARGS__ specifies the coresponding parameter Substitute(M, ArgsMap, HideSet) { make IS a copy of Macro.ReplacementList make OS...
《C++ preprocessor __VA_ARGS__ number of arguments》 《Macros with a Variable Number of Arguments.》 1:https://stackoverflow.com/questions/2124339/c-preprocessor-va-args-number-of-arguments 2:https://gcc.gnu.org/onlinedocs/gcc-5.2.0/gcc/Variadic-Macros.html#Variadic-Macros 本文参与 腾讯云自...
Compiler warning (level 4, off) C4777'function' : format string 'string' requires an argument of type 'type1', but variadic argumentnumberhas type 'type2' Compiler warning (level 3) C4778'function' : unterminated format string 'string' ...
Function{t=returntype}is used to represent functions returning an object of typereturntype. FieldwithoutProtois set totruewhen the function does not provide a prototype. Otherwise the arguments are described byPair{type,name}located as integer indices. The prototype of variadic functions end with ...
用可变参数宏(variadic macros)传递可变参数表 你可能很熟悉在函数中使用可变参数表,如: 1voidprintf(constchar* format, ...); 直到最近,可变参数表还是只能应用在真正的函数中,不能使用在宏中。 C99编译器标准终于改变了这种局面,它允许你可以定义可变参数宏(variadic macros),这样你就可以使用拥有可以变化的参数...
The preprocessor continues to support a pre-standard mode. See the GNU CPP manual for details. -fcond-mismatch Allow conditional expressions with mismatched types in the second and third arguments. The value of such an expression is void. This option is not supported for C++. -flax-vector-...
(However, the process that has added stringizing and variadic to the C vocabulary has not yet led to labeling functions or macros with a fixed number of arguments as fixadic functions and normadic macros.) The idea is that the final argument in an argument list for a macro definition can...
The preprocessor collects the extra parameters but ignores them during macro expansion.C4002 can occur when incorrectly using variadic macros.The following sample generates C4002:C++ Копирај // C4002.cpp // compile with: /W1 #define test(a) (a) int main() { int a = 1; int...
我从这里找到的最接近的可移植实现是: C++ preprocessor VA_ARGS number of arguments 但它不适用于 GCC 中的零参数,至少没有 -std=gnu++11 命令行参数。 所以我决定将此解决方案与该解决方案合并: https ://gustedt.wordpress.com/2010/06/08/detect-empty-macro-arguments/ #define UTILITY_PP_CONCAT_(v1...