title
Integer Limits | Microsoft Docs
ms.custom
ms.date
01/29/2018
ms.technology
ms.topic
language-reference
dev_langs
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
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
Floating Limits