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ciatan2.md

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title ms.date apiname apilocation apitype f1_keywords helpviewer_keywords ms.assetid
_CIatan2
11/04/2016
_CIatan2
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DLLExport
CIatan2
_CIatan2
_CIatan2 intrinsic
CIatan2 intrinsic
31f8cc78-b79f-4576-b73b-8add18e08680

_CIatan2

Calculates the arctangent of x / y where x and y are values on the top of the stack.

Syntax

void __cdecl _CIatan2();

Remarks

This version of the atan2 function has a specialized calling convention that the compiler understands. It 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 stack.

Requirements

Platform: x86

See Also

Alphabetical Function Reference
atan, atanf, atanl, atan2, atan2f, atan2l