Does typecasting consume extra CPU cycles

Question

Does typecasting in C/C++ result in extra CPU cycles?

My understanding is that is should consume extra CPU cycles atleast in certain cases. Like typecasting from flo

Answer 1

DL and enjoy Agner Fog's manuals:
http://www.agner.org/optimize/
1. Optimizing software in C++: An optimization guide for Windows, Linux and Mac platforms
It is huge PDF but for start you can check out:

14.7 Don't mix float and double
14.8 Conversions between floating point numbers and integers