C++20 STL Cookbook/

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Safely Compare Integers of Different Types

Safely Compare Integers of Different Types

Learn to use safely compare integers of different types in C++20.

We'll cover the following...

Comparing different types of integers may not always produce the expected results.

For example:

int x{ -3 };
unsigned y{ 7 };
if(x < y) puts("true");
else puts("false");

We may expect this code to print true, and that's understandable, as −3-3 ...