What does the compiler do to perform a cast operation in C++? [duplicate]

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How do C/C++ compilers handle type casting between types with different value ranges?

What does the compiler do to perform a cast operation in C++?

Explain with some sample C++ code.

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Standard sections

5.2.7, 5.2.8, 5.2.9, 5.2.10 and 5.2.11

give a good idea on how these casts work (which is what compiler and/or runtime implement).

reinterpret_cast is the only one whose behavior is kind of implementation defined.