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description title ms.date api_name api_location api_type topic_type f1_keywords helpviewer_keywords ms.assetid
Learn more about: _CItan
_CItan
4/2/2020
_CItan
_o__CItan
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_CItan
CItan
CItan intrinsic
_CItan intrinsic
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_CItan

Calculates the tangent of the top value on the floating-point stack.

Syntax

void __cdecl _CItan();

Remarks

This version of the tan function has a specialized calling convention that the compiler understands. The function speeds up the execution because it prevents copies from being generated and helps with register allocation.

The resulting value is pushed onto the top of the floating-point stack.

By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.

Requirements

Platform: x86

See also

Alphabetical function reference
tan, tanf, tanl