calling-convention Archives

[Solved] cout value without touching variable C++

February 4, 2023 by Kirat

When you print the addresses of a and b, that forces the variables to actually have a memory address. Otherwise a value might be stored in a register, or not at all if never used. It is a very common optimization for compilers to transform const int a = 9; cout << a; into cout … Read more

[Solved] Indexing args as an array in the Windows x86-64 ABI [closed]

September 8, 2022 by Kirat

Jester’s suggestion to write it in C is probably a good one, esp. if it can be inlined into calls where some of the args are compile-time constants. Your example use-case passes mostly compile-time-constant args, including the function pointer. Any decent optimizing compiler will inline this and optimize away the indirection into just a normal … Read more