Is there a way to write a large number in C++ source code with spaces to make it more readable? [duplicate]

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Category:Languages

Imagine I have the code:

vector<int> temp = vector<int>(1 000 000 000); 

The above will not compile as the compiler will complain about the spaces. Is it possible to indicate to C++ to ommit those spaces when compiling, or otherwise make the number easier to read?


Try digit separator:

int i = 1'000'000'000; 

This feature is introduced since C++14. It uses single quote (') as digit separator.


Also see:

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