Standard library header <ccomplex> (C++11)(until C++20), <complex.h> (C++11)

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C compatibility
<cstdbool> (C++11/17/20)
<ccomplex> (C++11/17/20)
<ctgmath> (C++11/17/20)
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<ciso646> (until C++20)
<stdatomic.h>
 

This header was originally in the C standard library as <complex.h>.

Includes

(C++11)
Complex number type

Notes

<ccomplex> is deprecated in C++17 and removed in C++20. Corresponding <complex.h> is still available in C++20.