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• Efficiently get the size of a parameter pack up to a certain index

  - by NmdMystery

  I want to be able to determine the number of bytes that are in a subset of a parameter pack from 0 to a given index. Right now I'm using a non-constexpr way of doing this. Below is my code: template <size_t index, typename... args> struct pack_size_index; template <size_t index, typename type_t, typename... args> struct…

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• Macro not declared in this scope

  - by NmdMystery

  I'm using a preprocessor #define macro to count the number of functions in a header file: #define __INDEX -1 //First group of functions void func1(void); #define __FUNC1_INDEX __INDEX + 1 void func2(void); #define __FUNC2_INDEX __FUNC1_INDEX + 1 #undef __INDEX #define __INDEX __FUNC2_INDEX //Second group of functions void…

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