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craigcaseyMSFTcraigcaseyMSFT
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US1907300 - add md code escapes to code elements - PR23 (MicrosoftDocs#4165)
* US1907300 - add md code escapes to code elements - PR23 * fix table error * fix table error * changes after review
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‎docs/c-runtime-library/data-type-constants.md‎

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@@ -4,7 +4,6 @@ title: "Data Type Constants"
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ms.date: "06/25/2018"
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f1_keywords: ["FLT_MIN", "SHRT_MAX", "CHAR_MIN", "MB_LEN_MAX", "DBL_EPSILON", "SHRT_MIN", "_FLT_RADIX", "FLT_DIG", "FLT_MAX_10_EXP", "FLT_MANT_DIG", "DBL_MAX_EXP", "SCHAR_MIN", "SCHAR_MAX", "DBL_MIN", "FLT_MIN_10_EXP", "_DBL_ROUNDS", "USHRT_MAX", "FLT_MAX_EXP", "LONG_MAX", "DBL_MAX", "DBL_DIG", "FLT_MIN_EXP", "INT_MIN", "DBL_MIN_10_EXP", "CHAR_BIT", "INT_MAX", "ULONG_MAX", "DBL_MIN_EXP", "LONG_MIN", "_FLT_ROUNDS", "DBL_MANT_DIG", "_DBL_RADIX", "CHAR_MAX", "FLT_MAX", "DBL_MAX_10_EXP", "UCHAR_MAX", "FLT_EPSILON", "UINT_MAX", "LLONG_MIN", "LLONG_MAX", "ULLONG_MAX", "_I8_MIN", "_I8_MAX", "_UI8_MAX", "_I16_MIN", "_I16_MAX", "_UI16_MAX", "_I32_MIN", "_I32_MAX", "_UI32_MAX", "_I64_MIN", "_I64_MAX", "_UI64_MAX", "_I128_MIN", "_I128_MAX", "_UI128_MAX", "SIZE_MAX", "RSIZE_MAX", "LDBL_DIG", "LDBL_EPSILON", "LDBL_HAS_SUBNORM", "LDBL_MANT_DIG", "LDBL_MAX", "LDBL_MAX_10_EXP", "LDBL_MAX_EXP", "LDBL_MIN", "LDBL_MIN_10_EXP", "LDBL_MIN_EXP", "_LDBL_RADIX", "LDBL_TRUE_MIN", "DECIMAL_DIG"]
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helpviewer_keywords: ["DBL_MAX_EXP constant", "_DBL_RADIX constant", "FLT_MIN_EXP constant", "DBL_EPSILON constant", "INT_MIN constant", "FLT_EPSILON constant", "DBL_MANT_DIG constant", "_FLT_RADIX constant", "DBL_MIN constant", "USHRT_MAX constant", "FLT_MAX_10_EXP constant", "_FLT_ROUNDS constant", "data type constants [C++]", "_DBL_ROUNDS constant", "CHAR_MAX constant", "FLT_MAX_EXP constant", "FLT_MIN constant", "CHAR_MIN constant", "FLT_MIN_10_EXP constant", "DBL_MIN_EXP constant", "SCHAR_MAX constant", "FLT_RADIX constant", "CHAR_BIT constant", "UCHAR_MAX constant", "DBL_RADIX constant", "FLT_ROUNDS constant", "LONG_MIN constant", "SHRT_MAX constant", "LONG_MAX constant", "DBL_MAX_10_EXP constant", "DBL_MIN_10_EXP constant", "INT_MAX constant", "constants [C++], data type", "ULONG_MAX constant", "FLT_DIG constant", "MB_LEN_MAX constant", "DBL_DIG constant", "SHRT_MIN constant", "DBL_MAX constant", "DBL_ROUNDS constant", "FLT_MAX constant", "UINT_MAX constant", "FLT_MANT_DIG constant", "SCHAR_MIN constant", "LLONG_MIN constant", "LLONG_MAX constant", "ULLONG_MAX constant", "_I8_MIN constant", "_I8_MAX constant", "_UI8_MAX constant", "_I16_MIN constant", "_I16_MAX constant", "_UI16_MAX constant", "_I32_MIN constant", "_I32_MAX constant", "_UI32_MAX constant", "_I64_MIN constant", "_I64_MAX constant", "_UI64_MAX constant", "_I128_MIN constant", "_I128_MAX constant", "_UI128_MAX constant", "SIZE_MAX constant", "RSIZE_MAX constant"]
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ms.assetid: c0f1c405-0465-41d5-b5ff-e81cdb6f1622
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---
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# Data Type Constants
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@@ -23,42 +22,42 @@ These constants give the ranges for the integral data types. To use these consta
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|Constant|Value|Description|
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|--------------|-----------|-------------|
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|**CHAR_BIT**|8|Number of bits in a **`char`**|
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|**SCHAR_MIN**|(-128)|Minimum **`signed char`** value|
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|**SCHAR_MAX**|127|Maximum **`signed char`** value|
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|**UCHAR_MAX**|255 (0xff)|Maximum **`unsigned char`** value|
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|**CHAR_MIN**|(-128) (0 if **`/J`** option used)|Minimum **`char`** value|
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|**CHAR_MAX**|127 (255 if **`/J`** option used)|Maximum **`char`** value|
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|**MB_LEN_MAX**|5|Maximum number of bytes in multibyte **`char`**|
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|**SHRT_MIN**|-32768|Minimum **`signed short`** value|
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|**SHRT_MAX**|32767|Maximum **`signed short`** value|
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|**USHRT_MAX**|65535 (0xffff)|Maximum **`unsigned short`** value|
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|**INT_MIN**|(-2147483647 - 1)|Minimum **`signed int`** value|
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|**INT_MAX**|2147483647|Maximum **`signed int`** value|
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|**UINT_MAX**|4294967295 (0xffffffff)|Maximum **`unsigned int`** value|
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|**LONG_MIN**|(-2147483647L - 1)|Minimum **`signed long`** value|
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|**LONG_MAX**|2147483647L|Maximum **`signed long`** value|
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|**ULONG_MAX**|4294967295UL (0xfffffffful)|Maximum **`unsigned long`** value|
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|**LLONG_MIN**|(-9223372036854775807LL - 1)|Minimum **`signed long long`** or **`__int64`** value|
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|**LLONG_MAX**|9223372036854775807LL|Maximum **`signed long long`** or **`__int64`** value|
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|**ULLONG_MAX**|0xffffffffffffffffull|Maximum **`unsigned long long`** value|
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|**_I8_MIN**|(-127i8 - 1)|Minimum signed 8-bit value|
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|**_I8_MAX**|127i8|Maximum signed 8-bit value|
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|**_UI8_MAX**|0xffui8|Maximum unsigned 8-bit value|
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|**_I16_MIN**|(-32767i16 - 1)|Minimum signed 16-bit value|
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|**_I16_MAX**|32767i16|Maximum signed 16-bit value|
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|**_UI16_MAX**|0xffffui16|Maximum unsigned 16-bit value|
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|**_I32_MIN**|(-2147483647i32 - 1)|Minimum signed 32-bit value|
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|**_I32_MAX**|2147483647i32|Maximum signed 32-bit value|
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|**_UI32_MAX**|0xffffffffui32|Maximum unsigned 32-bit value|
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|**_I64_MIN**|(-9223372036854775807 - 1)|Minimum signed 64-bit value|
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|**_I64_MAX**|9223372036854775807|Maximum signed 64-bit value|
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|**_UI64_MAX**|0xffffffffffffffffui64|Maximum unsigned 64-bit value|
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|**_I128_MIN**|(-170141183460469231731687303715884105727i128 - 1)|Minimum signed 128-bit value|
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|**_I128_MAX**|170141183460469231731687303715884105727i128|Maximum signed 128-bit value|
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|**_UI128_MAX**|0xffffffffffffffffffffffffffffffffui128|Maximum unsigned 128-bit value|
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|**SIZE_MAX**|same as **_UI64_MAX** if **_WIN64** is defined, or **UINT_MAX**|Maximum native integer size|
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|**RSIZE_MAX**|same as (**SIZE_MAX** >> 1)|Maximum secure library integer size|
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|**`CHAR_BIT`**|8|Number of bits in a **`char`**|
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|**`SCHAR_MIN`**|(-128)|Minimum **`signed char`** value|
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|**`SCHAR_MAX`**|127|Maximum **`signed char`** value|
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|**`UCHAR_MAX`**|255 (0xff)|Maximum **`unsigned char`** value|
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|**`CHAR_MIN`**|(-128) (0 if **`/J`** option used)|Minimum **`char`** value|
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|**`CHAR_MAX`**|127 (255 if **`/J`** option used)|Maximum **`char`** value|
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|**`MB_LEN_MAX`**|5|Maximum number of bytes in multibyte **`char`**|
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|**`SHRT_MIN`**|-32768|Minimum **`signed short`** value|
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|**`SHRT_MAX`**|32767|Maximum **`signed short`** value|
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|**`USHRT_MAX`**|65535 (0xffff)|Maximum **`unsigned short`** value|
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|**`INT_MIN`**|(-2147483647 - 1)|Minimum **`signed int`** value|
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|**`INT_MAX`**|2147483647|Maximum **`signed int`** value|
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|**`UINT_MAX`**|4294967295 (0xffffffff)|Maximum **`unsigned int`** value|
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|**`LONG_MIN`**|(-2147483647L - 1)|Minimum **`signed long`** value|
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|**`LONG_MAX`**|2147483647L|Maximum **`signed long`** value|
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|**`ULONG_MAX`**|4294967295UL (0xfffffffful)|Maximum **`unsigned long`** value|
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|**`LLONG_MIN`**|(-9223372036854775807LL - 1)|Minimum **`signed long long`** or **`__int64`** value|
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|**`LLONG_MAX`**|9223372036854775807LL|Maximum **`signed long long`** or **`__int64`** value|
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|**`ULLONG_MAX`**|0xffffffffffffffffull|Maximum **`unsigned long long`** value|
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|**`_I8_MIN`**|(-127i8 - 1)|Minimum signed 8-bit value|
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|**`_I8_MAX`**|127i8|Maximum signed 8-bit value|
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|**`_UI8_MAX`**|0xffui8|Maximum unsigned 8-bit value|
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|**`_I16_MIN`**|(-32767i16 - 1)|Minimum signed 16-bit value|
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|**`_I16_MAX`**|32767i16|Maximum signed 16-bit value|
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|**`_UI16_MAX`**|0xffffui16|Maximum unsigned 16-bit value|
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|**`_I32_MIN`**|(-2147483647i32 - 1)|Minimum signed 32-bit value|
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|**`_I32_MAX`**|2147483647i32|Maximum signed 32-bit value|
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|**`_UI32_MAX`**|0xffffffffui32|Maximum unsigned 32-bit value|
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|**`_I64_MIN`**|(-9223372036854775807 - 1)|Minimum signed 64-bit value|
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|**`_I64_MAX`**|9223372036854775807|Maximum signed 64-bit value|
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|**`_UI64_MAX`**|0xffffffffffffffffui64|Maximum unsigned 64-bit value|
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|**`_I128_MIN`**|(-170141183460469231731687303715884105727i128 - 1)|Minimum signed 128-bit value|
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|**`_I128_MAX`**|170141183460469231731687303715884105727i128|Maximum signed 128-bit value|
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|**`_UI128_MAX`**|0xffffffffffffffffffffffffffffffffui128|Maximum unsigned 128-bit value|
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|**`SIZE_MAX`**|same as **`_UI64_MAX`** if **`_WIN64`** is defined, or **`UINT_MAX`**|Maximum native integer size|
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|**`RSIZE_MAX`**|same as (**`SIZE_MAX`** >> 1)|Maximum secure library integer size|
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## Floating-point type constants
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|Constant|Value|Description|
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|--------------|-----------|-----------------|
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|**DBL_DECIMAL_DIG**|17|# of decimal digits of rounding precision|
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|**DBL_DIG**|15|# of decimal digits of precision|
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|**DBL_EPSILON**|2.2204460492503131e-016|Smallest such that 1.0 + **DBL_EPSILON** != 1.0|
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|**DBL_HAS_SUBNORM**|1|Type supports subnormal (denormal) numbers|
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|**DBL_MANT_DIG**|53|# of bits in significand (mantissa)|
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|**DBL_MAX**|1.7976931348623158e+308|Maximum value|
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|**DBL_MAX_10_EXP**|308|Maximum decimal exponent|
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|**DBL_MAX_EXP**|1024|Maximum binary exponent|
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|**DBL_MIN**|2.2250738585072014e-308|Minimum normalized positive value|
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|**DBL_MIN_10_EXP**|(-307)|Minimum decimal exponent|
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|**DBL_MIN_EXP**|(-1021)|Minimum binary exponent|
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|**_DBL_RADIX**|2|Exponent radix|
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|**DBL_TRUE_MIN**|4.9406564584124654e-324|Minimum positive subnormal value|
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|**FLT_DECIMAL_DIG**|9|Number of decimal digits of rounding precision|
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|**FLT_DIG**|6|Number of decimal digits of precision|
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|**FLT_EPSILON**|1.192092896e-07F|Smallest such that 1.0 + **FLT_EPSILON** != 1.0|
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|**FLT_HAS_SUBNORM**|1|Type supports subnormal (denormal) numbers|
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|**FLT_MANT_DIG**|24|Number of bits in significand (mantissa)|
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|**FLT_MAX**|3.402823466e+38F|Maximum value|
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|**FLT_MAX_10_EXP**|38|Maximum decimal exponent|
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|**FLT_MAX_EXP**|128|Maximum binary exponent|
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|**FLT_MIN**|1.175494351e-38F|Minimum normalized positive value|
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|**FLT_MIN_10_EXP**|(-37)|Minimum decimal exponent|
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|**FLT_MIN_EXP**|(-125)|Minimum binary exponent|
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|**FLT_RADIX**|2|Exponent radix|
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|**FLT_TRUE_MIN**|1.401298464e-45F|Minimum positive subnormal value|
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|**LDBL_DIG**|15|# of decimal digits of precision|
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|**LDBL_EPSILON**|2.2204460492503131e-016|Smallest such that 1.0 + **LDBL_EPSILON** != 1.0|
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|**LDBL_HAS_SUBNORM**|1|Type supports subnormal (denormal) numbers|
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|**LDBL_MANT_DIG**|53|# of bits in significand (mantissa)|
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|**LDBL_MAX**|1.7976931348623158e+308|Maximum value|
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|**LDBL_MAX_10_EXP**|308|Maximum decimal exponent|
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|**LDBL_MAX_EXP**|1024|Maximum binary exponent|
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|**LDBL_MIN**|2.2250738585072014e-308|Minimum normalized positive value|
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|**LDBL_MIN_10_EXP**|(-307)|Minimum decimal exponent|
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|**LDBL_MIN_EXP**|(-1021)|Minimum binary exponent|
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|**_LDBL_RADIX**|2|Exponent radix|
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|**LDBL_TRUE_MIN**|4.9406564584124654e-324|Minimum positive subnormal value|
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|**DECIMAL_DIG**|same as **DBL_DECIMAL_DIG**|Default (double) decimal digits of rounding precision|
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|**`DBL_DECIMAL_DIG`**|17|# of decimal digits of rounding precision|
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|**`DBL_DIG`**|15|# of decimal digits of precision|
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|**`DBL_EPSILON`**|2.2204460492503131e-016|Smallest such that 1.0 + **`DBL_EPSILON`** != 1.0|
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|**`DBL_HAS_SUBNORM`**|1|Type supports subnormal (denormal) numbers|
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|**`DBL_MANT_DIG`**|53|# of bits in significand (mantissa)|
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|**`DBL_MAX`**|1.7976931348623158e+308|Maximum value|
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|**`DBL_MAX_10_EXP`**|308|Maximum decimal exponent|
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|**`DBL_MAX_EXP`**|1024|Maximum binary exponent|
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|**`DBL_MIN`**|2.2250738585072014e-308|Minimum normalized positive value|
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|**`DBL_MIN_10_EXP`**|(-307)|Minimum decimal exponent|
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|**`DBL_MIN_EXP`**|(-1021)|Minimum binary exponent|
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|**`_DBL_RADIX`**|2|Exponent radix|
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|**`DBL_TRUE_MIN`**|4.9406564584124654e-324|Minimum positive subnormal value|
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|**`FLT_DECIMAL_DIG`**|9|Number of decimal digits of rounding precision|
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|**`FLT_DIG`**|6|Number of decimal digits of precision|
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|**`FLT_EPSILON`**|1.192092896e-07F|Smallest such that 1.0 + **`FLT_EPSILON`** != 1.0|
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|**`FLT_HAS_SUBNORM`**|1|Type supports subnormal (denormal) numbers|
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|**`FLT_MANT_DIG`**|24|Number of bits in significand (mantissa)|
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|**`FLT_MAX`**|3.402823466e+38F|Maximum value|
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|**`FLT_MAX_10_EXP`**|38|Maximum decimal exponent|
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|**`FLT_MAX_EXP`**|128|Maximum binary exponent|
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|**`FLT_MIN`**|1.175494351e-38F|Minimum normalized positive value|
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|**`FLT_MIN_10_EXP`**|(-37)|Minimum decimal exponent|
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|**`FLT_MIN_EXP`**|(-125)|Minimum binary exponent|
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|**`FLT_RADIX`**|2|Exponent radix|
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|**`FLT_TRUE_MIN`**|1.401298464e-45F|Minimum positive subnormal value|
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|**`LDBL_DIG`**|15|# of decimal digits of precision|
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|**`LDBL_EPSILON`**|2.2204460492503131e-016|Smallest such that 1.0 + **`LDBL_EPSILON`** != 1.0|
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|**`LDBL_HAS_SUBNORM`**|1|Type supports subnormal (denormal) numbers|
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|**`LDBL_MANT_DIG`**|53|# of bits in significand (mantissa)|
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|**`LDBL_MAX`**|1.7976931348623158e+308|Maximum value|
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|**`LDBL_MAX_10_EXP`**|308|Maximum decimal exponent|
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|**`LDBL_MAX_EXP`**|1024|Maximum binary exponent|
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|**`LDBL_MIN`**|2.2250738585072014e-308|Minimum normalized positive value|
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|**`LDBL_MIN_10_EXP`**|(-307)|Minimum decimal exponent|
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|**`LDBL_MIN_EXP`**|(-1021)|Minimum binary exponent|
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|**`_LDBL_RADIX`**|2|Exponent radix|
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|**`LDBL_TRUE_MIN`**|4.9406564584124654e-324|Minimum positive subnormal value|
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|**`DECIMAL_DIG`**|same as **`DBL_DECIMAL_DIG`**|Default (double) decimal digits of rounding precision|
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## See also
114113

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