---
title: "Integer Limits | Microsoft Docs"
ms.custom: ""
ms.date: "01/29/2018"
ms.technology: ["cpp-language"]
ms.topic: "language-reference"
dev_langs: ["C++"]
helpviewer_keywords: ["integral limits", "limits, integer", "limits.h header file", "integer limits"]
ms.assetid: 6922bdbf-0f49-443b-bc03-ee182e4cbd57
author: "mikeblome"
ms.author: "mblome"
ms.workload: ["cplusplus"]
---
# Integer Limits

**Microsoft Specific**

The limits for integer types are listed in the following table. These limits are also defined in the standard header file <limits.h>.

## Limits on Integer Constants

|Constant|Meaning|Value|
|--------------|-------------|-----------|
|**CHAR_BIT**|Number of bits in the smallest variable that is not a bit field.|8|
|**SCHAR_MIN**|Minimum value for a variable of type **signed char**.|-128|
|**SCHAR_MAX**|Maximum value for a variable of type **signed char**.|127|
|**UCHAR_MAX**|Maximum value for a variable of type **unsigned char**.|255 (0xff)|
|**CHAR_MIN**|Minimum value for a variable of type **char**.|-128; 0 if /J option used|
|**CHAR_MAX**|Maximum value for a variable of type **char**.|127; 255 if /J option used|
|**MB_LEN_MAX**|Maximum number of bytes in a multicharacter constant.|5|
|**SHRT_MIN**|Minimum value for a variable of type **short**.|-32768|
|**SHRT_MAX**|Maximum value for a variable of type **short**.|32767|
|**USHRT_MAX**|Maximum value for a variable of type **unsigned short**.|65535 (0xffff)|
|**INT_MIN**|Minimum value for a variable of type **int**.|-2147483648|
|**INT_MAX**|Maximum value for a variable of type **int**.|2147483647|
|**UINT_MAX**|Maximum value for a variable of type **unsigned int**.|4294967295 (0xffffffff)|
|**LONG_MIN**|Minimum value for a variable of type **long**.|-2147483648|
|**LONG_MAX**|Maximum value for a variable of type **long**.|2147483647|
|**ULONG_MAX**|Maximum value for a variable of type **unsigned long**.|4294967295 (0xffffffff)|
|**LLONG_MIN**|Minimum value for a variable of type **long long**|-9223372036854775808|
|**LLONG_MAX**|Maximum value for a variable of type **long long**|9223372036854775807|
|**ULLONG_MAX**|Maximum value for a variable of type **unsigned long long**|18446744073709551615 (0xffffffffffffffff)|

If a value exceeds the largest integer representation, the Microsoft compiler generates an error.

**END Microsoft Specific**

## See Also

[Floating Limits](../cpp/floating-limits.md)