max.md

title	ms.date	api_name	api_location	api_type	topic_type	f1_keywords	helpviewer_keywords	ms.assetid
__max	04/05/2018	__max	msvcrt.dll msvcr80.dll msvcr90.dll msvcr100.dll msvcr100_clr0400.dll msvcr110.dll msvcr110_clr0400.dll msvcr120.dll msvcr120_clr0400.dll ucrtbase.dll	DLLExport	apiref	max __max	max macro maximum macro __max macro	05c936f6-0e22-45d6-a58d-4bc102e9dae2

__max

A preprocessor macro that returns the larger of two values.

Syntax

#define __max(a,b) (((a) > (b)) ? (a) : (b))

Parameters

a, b
Values of any numeric type to be compared.

Return Value

__max returns the larger of its arguments.

Remarks

The __max macro compares two values and returns the value of the larger one. The arguments can be of any numeric data type, signed or unsigned. Both arguments and the return value must be of the same data type.

The argument returned is evaluated twice by the macro. This can lead to unexpected results if the argument is an expression that alters its value when it is evaluated, such as *p++.

Requirements

Macro	Required header
__max	<stdlib.h>

Example

For more information, see the example for __min.

See also

Floating-Point Support
__min