Standard library header <ctgmath> (C++11) (until C++20) , <tgmath.h> (C++11)

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Language support
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General utilities
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Algorithms
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Strings
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Text processing
`<clocale>`
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Numerics
`<cfenv>` (C++11)
`<cmath>`
`<complex>`
`<linalg>` (C++26)
`<numbers>` (C++20)
`<random>` (C++11)
`<simd>` (C++26)
`<valarray>`
Time
`<chrono>` (C++11)
`<ctime>`
C compatibility
`<ccomplex>` ( C++11/17/20* )
`<ciso646>` (until C++20)
`<cstdalign>` ( C++11/17/20* )
`<cstdbool>` ( C++11/17/20* )
`<ctgmath>` ( C++11/17/20* )

Input/output
`<cinttypes>` (C++11)
`<cstdio>`
`<filesystem>` (C++17)
`<fstream>`
`<iomanip>`
`<iosfwd>`
`<iostream>`
`<ios>`
`<istream>`
`<ostream>`
`<print>` (C++23)
`<spanstream>` (C++23)
`<sstream>`
`<streambuf>`
`<strstream>` ( C++98/26* )
`<syncstream>` (C++20)
Concurrency support
`<atomic>` (C++11)
`<barrier>` (C++20)
`<condition_variable>` (C++11)
`<future>` (C++11)
`<hazard_pointer>` (C++26)
`<latch>` (C++20)
`<mutex>` (C++11)
`<rcu>` (C++26)
`<semaphore>` (C++20)
`<shared_mutex>` (C++14)
`<stdatomic.h>` (C++23)
`<stop_token>` (C++20)
`<thread>` (C++11)
Execution support
`<execution>` (C++17)

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

This header is part of the numeric library.

Includes
<ccomplex> (C++11) (deprecated in C++17) (removed in C++20)	Simply includes the header `<complex>`
<cmath> (C++11)	Common mathematics functions

Notes

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

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