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Merge pull request MicrosoftDocs#162 from BillyONeal/dev/bion/update_constants
Change integer limits and header name to use standard names.
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‎docs/cpp/integer-limits.md

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---
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title: "Integer Limits | Microsoft Docs"
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ms.custom: ""
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ms.date: "11/04/2016"
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ms.date: "01/29/2018"
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ms.reviewer: ""
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ms.suite: ""
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ms.technology: ["cpp-language"]
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ms.workload: ["cplusplus"]
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---
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# Integer Limits
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**Microsoft Specific**
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The limits for integer types are listed in the following table. These limits are also defined in the standard header file \<limits.h>.
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### Limits on Integer Constants
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|Constant|Meaning|Value|
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|--------------|-------------|-----------|
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|**CHAR_BIT**|Number of bits in the smallest variable that is not a bit field.|8|
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|**SCHAR_MIN**|Minimum value for a variable of type **signed char**.|-128|
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|**SCHAR_MAX**|Maximum value for a variable of type **signed char**.|127|
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|**UCHAR_MAX**|Maximum value for a variable of type `unsigned char`.|255 (0xff)|
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|**CHAR_MIN**|Minimum value for a variable of type `char`.|-128; 0 if /J option used|
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|**CHAR_MAX**|Maximum value for a variable of type `char`.|127; 255 if /J option used|
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|**MB_LEN_MAX**|Maximum number of bytes in a multicharacter constant.|5|
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|**SHRT_MIN**|Minimum value for a variable of type **short**.|-32768|
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|**SHRT_MAX**|Maximum value for a variable of type **short**.|32767|
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|**USHRT_MAX**|Maximum value for a variable of type **unsigned short**.|65535 (0xffff)|
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|**INT_MIN**|Minimum value for a variable of type `int`.|-2147483648|
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|**INT_MAX**|Maximum value for a variable of type `int`.|2147483647|
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|**UINT_MAX**|Maximum value for a variable of type `unsigned int`.|4294967295 (0xffffffff)|
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|**LONG_MIN**|Minimum value for a variable of type **long**.|-2147483648|
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|**LONG_MAX**|Maximum value for a variable of type **long**.|2147483647|
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|**ULONG_MAX**|Maximum value for a variable of type `unsigned long`.|4294967295 (0xffffffff)|
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|**_I64_MIN**|Minimum value for a variable of type `__int64`|-9223372036854775808|
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|**_I64_MAX**|Maximum value for a variable of type `__int64`|9223372036854775807|
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|**_UI64_MAX**|Maximum value for a variable of type **unsigned __int64**|18446744073709551615 (0xffffffffffffffff)|
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If a value exceeds the largest integer representation, the Microsoft compiler generates an error.
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**END Microsoft Specific**
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## See Also
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[Floating Limits](../cpp/floating-limits.md)
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**Microsoft Specific**
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The limits for integer types are listed in the following table. These limits are also defined in the standard header file <limits.h>.
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## Limits on Integer Constants
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|Constant|Meaning|Value|
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|--------------|-------------|-----------|
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|**CHAR_BIT**|Number of bits in the smallest variable that is not a bit field.|8|
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|**SCHAR_MIN**|Minimum value for a variable of type **signed char**.|-128|
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|**SCHAR_MAX**|Maximum value for a variable of type **signed char**.|127|
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|**UCHAR_MAX**|Maximum value for a variable of type **unsigned char**.|255 (0xff)|
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|**CHAR_MIN**|Minimum value for a variable of type **char**.|-128; 0 if /J option used|
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|**CHAR_MAX**|Maximum value for a variable of type **char**.|127; 255 if /J option used|
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|**MB_LEN_MAX**|Maximum number of bytes in a multicharacter constant.|5|
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|**SHRT_MIN**|Minimum value for a variable of type **short**.|-32768|
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|**SHRT_MAX**|Maximum value for a variable of type **short**.|32767|
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|**USHRT_MAX**|Maximum value for a variable of type **unsigned short**.|65535 (0xffff)|
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|**INT_MIN**|Minimum value for a variable of type **int**.|-2147483648|
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|**INT_MAX**|Maximum value for a variable of type **int**.|2147483647|
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|**UINT_MAX**|Maximum value for a variable of type **unsigned int**.|4294967295 (0xffffffff)|
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|**LONG_MIN**|Minimum value for a variable of type **long**.|-2147483648|
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|**LONG_MAX**|Maximum value for a variable of type **long**.|2147483647|
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|**ULONG_MAX**|Maximum value for a variable of type **unsigned long**.|4294967295 (0xffffffff)|
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|**LLONG_MIN**|Minimum value for a variable of type **long long**|-9223372036854775808|
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|**LLONG_MAX**|Maximum value for a variable of type **long long**|9223372036854775807|
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|**ULLONG_MAX**|Maximum value for a variable of type **unsigned long long**|18446744073709551615 (0xffffffffffffffff)|
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If a value exceeds the largest integer representation, the Microsoft compiler generates an error.
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**END Microsoft Specific**
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## See Also
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[Floating Limits](../cpp/floating-limits.md)

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