Crate dec_number_sys

Rust bindings for The decNumber C library by IBM Fellow Mike Cowlishaw.

Structs

• DecContext
  Decimal context.
• DecNumber
  Arbitrary precision decimal number.

Constants

• DEC_DOUBLE_BYTES
  Length in bytes of DecDouble union.
• DEC_DOUBLE_STRING
  Maximum length of the DecDouble string.
• DEC_DOUBLE_STRING_BUFFER
  Buffer for DecDouble string.
• DEC_DOUBLE_ZERO
  Convenient constant for DecDouble equal to positive zero.
• DEC_FLOAT_SIGN
  Sign mask.
• DEC_INF
  Infinity mask: 1 = Infinity.
• DEC_INIT_BASE
  Initializes context to ANSI X3-274 defaults.
• DEC_INIT_DECIMAL32
  Initializes context to IEEE 754 defaults, 32-bit.
• DEC_INIT_DECIMAL64
  Initializes context to IEEE 754 defaults, 64-bit.
• DEC_INIT_DECIMAL128
  Initializes context to IEEE 754 defaults, 128-bit.
• DEC_NAN
  Not-a-Number mask: 1 = NaN.
• DEC_NEG
  Sign mask: 1 = negative, 0 = positive or zero.
• DEC_NUMBER_BILLION
  DecNumber value 1000000000 (billion).
• DEC_NUMBER_HUNDRED
  DecNumber value 100 (hundred).
• DEC_NUMBER_MILLION
  DecNumber value 1000000 (million).
• DEC_NUMBER_ONE
  DecNumber value 1 (one).
• DEC_NUMBER_TEN
  DecNumber value 10 (ten).
• DEC_NUMBER_THOUSAND
  DecNumber value 1000 (thousand).
• DEC_NUMBER_TWO
  DecNumber value 2 (two).
• DEC_NUMBER_ZERO
  DecNumber value 0 (zero).
• DEC_QUAD_BILLION
  DecQuad value 1000000000 (billion).
• DEC_QUAD_BYTES
  Length in bytes of the DecQuad union.
• DEC_QUAD_HUNDRED
  DecQuad value 100 (hundred).
• DEC_QUAD_MILLION
  DecQuad value 1000000 (million).
• DEC_QUAD_ONE
  DecQuad value 1 (one).
• DEC_QUAD_PMAX
  Maximum precision (digits) for 128-bit decimals.
• DEC_QUAD_STRING
  Maximum length of the DecQuad string.
• DEC_QUAD_STRING_BUFFER
  DecQuad string buffer.
• DEC_QUAD_TEN
  DecQuad value 10 (ten).
• DEC_QUAD_THOUSAND
  DecQuad value 1000 (thousand).
• DEC_QUAD_TWO
  DecQuad value 2 (two).
• DEC_QUAD_ZERO
  DecQuad value 0 (zero).
• DEC_ROUND_05UP
  Round for re-round.
• DEC_ROUND_CEILING
  Round towards +Infinity.
• DEC_ROUND_DOWN
  Round towards 0 (truncate).
• DEC_ROUND_FLOOR
  Round towards -Infinity.
• DEC_ROUND_HALF_DOWN
  0.5 rounds down.
• DEC_ROUND_HALF_EVEN
  0.5 rounds to nearest even.
• DEC_ROUND_HALF_UP
  0.5 rounds up.
• DEC_ROUND_UP
  Round away from 0.
• DEC_SINGLE_BYTES
  Length in bytes of DecSingle union.
• DEC_SINGLE_STRING
  Maximum length of the DecSingle string.
• DEC_SINGLE_STRING_BUFFER
  Buffer for DecSingle string.
• DEC_SINGLE_ZERO
  Convenient constant for DecSingle equal to positive zero.
• DEC_SNAN
  Signalling Not-a-Number mask: 1 = sNaN.
• DEC_SPECIAL
  Special value mask: 1 = special (Infinity, NaN or sNaN).

Functions

• bcd
  Converts unsigned integer into BCD representation.
• bcd_quad
  Converts unsigned integer into BCD representation with maximum digits that fit into DecQuad.
• decContextDefault^⚠
  Unsafe binding to decContextDefault function.
• decContextGetStatus^⚠
  Unsafe binding to decContextGetStatus function.
• decContextStatusToString^⚠
  Unsafe binding to decContextStatusToString function.
• decContextZeroStatus^⚠
  Unsafe binding to decContextZeroStatus function.
• decDoubleAdd^⚠
  Unsafe binding to decDoubleAdd function.
• decDoubleFromString^⚠
  Unsafe binding to decDoubleFromString function.
• decDoubleToString^⚠
  Unsafe binding to decDoubleToString function.
• decDoubleZero^⚠
  Unsafe binding to decDoubleZero function.
• decNumberAdd^⚠
  Unsafe binding to decNumberAdd function.
• decNumberCompare^⚠
  Unsafe binding to decNumberCompare function.
• decNumberDivide^⚠
  Unsafe binding to decNumberDivide function.
• decNumberExp^⚠
  Unsafe binding to decNumberExp function.
• decNumberFromInt32^⚠
  Unsafe binding to decNumberFromInt32 function.
• decNumberFromString^⚠
  Unsafe binding to decNumberFromString function.
• decNumberFromUInt32^⚠
  Unsafe binding to decNumberFromUInt32 function.
• decNumberLn^⚠
  Unsafe binding to decNumberLn function.
• decNumberMinus^⚠
  Unsafe binding to decNumberMinus function.
• decNumberMultiply^⚠
  Unsafe binding to decNumberMultiply function.
• decNumberPlus^⚠
  Unsafe binding to decNumberPlus function.
• decNumberPower^⚠
  Unsafe binding to decNumberPower function.
• decNumberQuantize^⚠
  Unsafe binding to decNumberQuantize function.
• decNumberReduce^⚠
  Unsafe binding to decNumberReduce function.
• decNumberRescale^⚠
  Unsafe binding to decNumberRescale function.
• decNumberScaleB^⚠
  Unsafe binding to decNumberScaleB function.
• decNumberSetBCD^⚠
  Unsafe binding to decNumberSetBCD function.
• decNumberSquareRoot^⚠
  Unsafe binding to decNumberSquareRoot function.
• decNumberSubtract^⚠
  Unsafe binding to decNumberSubtract function.
• decNumberToString^⚠
  Unsafe binding to decNumberToString function.
• decNumberZero^⚠
  Unsafe binding to decNumberZero function.
• decQuadAbs^⚠
  Unsafe binding to decQuadAbs function.
• decQuadAdd^⚠
  Unsafe binding to decQuadAdd function.
• decQuadAnd^⚠
  Unsafe binding to decQuadAnd function.
• decQuadCanonical^⚠
  Unsafe binding to decDoubleCanonical function.
• decQuadCompare^⚠
  Unsafe binding to decQuadCompare function.
• decQuadCompareSignal^⚠
  Unsafe binding to decQuadCompareSignal function.
• decQuadCompareTotal^⚠
  Unsafe binding to decQuadCompareTotal function.
• decQuadCompareTotalMag^⚠
  Unsafe binding to decQuadCompareTotalMag function.
• decQuadCopy^⚠
  Unsafe binding to decQuadCopy function.
• decQuadCopyAbs^⚠
  Unsafe binding to decQuadCopyAbs function.
• decQuadCopyNegate^⚠
  Unsafe binding to decQuadCopyNegate function.
• decQuadCopySign^⚠
  Unsafe binding to decQuadCopySign function.
• decQuadDigits^⚠
  Unsafe binding to decQuadDigits function.
• decQuadDivide^⚠
  Unsafe binding to decQuadDivide function.
• decQuadDivideInteger^⚠
  Unsafe binding to decQuadDivideInteger function.
• decQuadFMA^⚠
  Unsafe binding to decQuadFMA function.
• decQuadFromBCD^⚠
  Unsafe binding to decQuadFromBCD function.
• decQuadFromInt32^⚠
  Unsafe binding to decQuadFromInt32 function.
• decQuadFromString^⚠
  Unsafe binding to decQuadFromString function.
• decQuadFromUInt32^⚠
  Unsafe binding to decQuadFromUInt32 function.
• decQuadFromWider^⚠
  Unsafe binding to decQuadFromWider function.
• decQuadGetCoefficient^⚠
  Unsafe binding to decQuadGetCoefficient function.
• decQuadGetExponent^⚠
  Unsafe binding to decQuadGetExponent function.
• decQuadInvert^⚠
  Unsafe binding to decQuadInvert function.
• decQuadIsCanonical^⚠
  Unsafe binding to decQuadIsCanonical function.
• decQuadIsFinite^⚠
  Unsafe binding to decQuadIsFinite function.
• decQuadIsInfinite^⚠
  Unsafe binding to decQuadIsInfinite function.
• decQuadIsInteger^⚠
  Unsafe binding to decQuadIsInteger function.
• decQuadIsLogical^⚠
  Unsafe binding to decQuadIsLogical function.
• decQuadIsNaN^⚠
  Unsafe binding to decQuadIsNaN function.
• decQuadIsNegative^⚠
  Unsafe binding to decQuadIsNegative function.
• decQuadIsNormal^⚠
  Unsafe binding to decQuadIsNormal function.
• decQuadIsPositive^⚠
  Unsafe binding to decQuadIsPositive function.
• decQuadIsSignaling^⚠
  Unsafe binding to decQuadIsSignaling function.
• decQuadIsSignalling^⚠
  Unsafe binding to decQuadIsSignalling function.
• decQuadIsZero^⚠
  Unsafe binding to decQuadIsZero function.
• decQuadMinus^⚠
  Unsafe binding to decQuadMinus function.
• decQuadMultiply^⚠
  Unsafe binding to decQuadMultiply function.
• decQuadPlus^⚠
  Unsafe binding to decQuadPlus function.
• decQuadQuantize^⚠
  Unsafe binding to decQuadQuantize function.
• decQuadReduce^⚠
  Unsafe binding to decQuadReduce function.
• decQuadRemainder^⚠
  Unsafe binding to decQuadRemainder function.
• decQuadScaleB^⚠
  Unsafe binding to decQuadScaleB function.
• decQuadSubtract^⚠
  Unsafe binding to decQuadSubtract function.
• decQuadToInt32^⚠
  Unsafe binding to decQuadToInt32 function.
• decQuadToIntegralValue^⚠
  Unsafe binding to decQuadToIntegralValue function.
• decQuadToString^⚠
  Unsafe binding to decQuadToString function.
• decQuadToUInt32^⚠
  Unsafe binding to decQuadToUInt32 function.
• decQuadZero^⚠
  Unsafe binding to decQuadZero function.
• decSingleFromString^⚠
  Unsafe binding to decSingleFromString function.
• decSingleFromWider^⚠
  Unsafe binding to decSingleFromWider function.
• decSingleToString^⚠
  Unsafe binding to decSingleToString function.
• decSingleToWider^⚠
  Unsafe binding to decSingleToWider function.
• decSingleZero^⚠
  Unsafe binding to decSingleZero function.
• dec_context_32
  Returns decimal context initialized for 32-bit decimals.
• dec_context_64
  Returns decimal context initialized for 64-bit decimals.
• dec_context_128
  Returns decimal context initialized for 128-bit decimals.
• dec_context_base
  Returns decimal context initialized with maximum specified number of digits.
• dec_context_default
  Safe binding to decContextDefault function.
• dec_context_get_status
  Safe binding to decContextGetStatus function.
• dec_context_status_to_string
  Safe binding to decContextStatusToString function.
• dec_context_zero_status
  Safe binding to decContextZeroStatus function.
• dec_double_add
  Safe binding to decDoubleAdd function.
• dec_double_from_string
  Safe binding to decDoubleFromString function.
• dec_double_to_string
  Safe binding to decDoubleToString function.
• dec_double_zero
  Safe binding to decDoubleZero function.
• dec_number_add
  Safe binding to decNumberAdd function.
• dec_number_compare
  Safe binding to decNumberCompare function.
• dec_number_divide
  Safe binding to decNumberDivide function.
• dec_number_exp
  Safe binding to decNumberExp function.
• dec_number_from_i32
  Safe binding to decNumberFromInt32 function.
• dec_number_from_string
  Safe binding to decNumberFromString function.
• dec_number_from_u32
  Safe binding to decNumberFromUInt32 function.
• dec_number_is_negative
  Safe binding to decNumberIsNegative function.
• dec_number_is_zero
  Safe binding to decNumberIsZero function.
• dec_number_ln
  Safe binding to decNumberLn function.
• dec_number_minus
  Safe binding to decNumberMinus function.
• dec_number_multiply
  Safe binding to decNumberMultiply function.
• dec_number_plus
  Safe binding to decNumberPlus function.
• dec_number_power
  Safe binding to decNumberPower function.
• dec_number_quantize
  Safe binding to decNumberQuantize function.
• dec_number_reduce
  Safe binding to decNumberReduce function.
• dec_number_rescale
  Safe binding to decNumberRescale function.
• dec_number_scale_b
  Safe binding to decNumberScaleB function.
• dec_number_square_root
  Safe binding to decNumberSquareRoot function.
• dec_number_subtract
  Safe binding to decNumberSubtract function.
• dec_number_to_string
  Safe binding to decNumberToString function.
• dec_number_zero
  Safe binding to decNumberZero function.
• dec_quad_abs
  Safe binding to decQuadAbs function.
• dec_quad_add
  Safe binding to decQuadAdd function.
• dec_quad_and
  Safe binding to decQuadAnd function.
• dec_quad_canonical
  Safe binding to decQuadCanonical function.
• dec_quad_compare
  Safe binding to decQuadCompare function.
• dec_quad_compare_signal
  Safe binding to decQuadCompareSignal function.
• dec_quad_compare_total
  Safe binding to decQuadCompareTotal function.
• dec_quad_compare_total_mag
  Safe binding to decQuadCompareTotalMag function.
• dec_quad_copy
  Safe binding to decQuadCopy function.
• dec_quad_copy_abs
  Safe binding to decQuadCopyAbs function.
• dec_quad_copy_negate
  Safe binding to decQuadCopyNegate function.
• dec_quad_copy_sign
  Safe binding to decQuadCopySign function.
• dec_quad_digits
  Safe binding to decQuadDigits function.
• dec_quad_divide
  Safe binding to decQuadDivide function.
• dec_quad_divide_integer
  Safe binding to decQuadDivideInteger function.
• dec_quad_fma
  Safe binding to decQuadFMA function.
• dec_quad_from_bcd
  Safe binding to decQuadFromBCD function.
• dec_quad_from_i32
  Safe binding to decQuadFromInt32 function.
• dec_quad_from_string
  Safe binding to decQuadFromString function.
• dec_quad_from_u32
  Safe binding to decQuadFromUInt32 function.
• dec_quad_from_wider
  Safe binding to decQuadFromWider function.
• dec_quad_get_coefficient
  Safe binding to decQuadGetCoefficient function.
• dec_quad_get_exponent
  Safe binding to decQuadGetExponent function.
• dec_quad_invert
  Safe binding to decQuadInvert function.
• dec_quad_is_canonical
  Safe binding to decQuadIsCanonical function.
• dec_quad_is_finite
  Safe binding to decQuadIsFinite function.
• dec_quad_is_infinite
  Safe binding to decQuadIsInfinite function.
• dec_quad_is_integer
  Safe binding to decQuadIsInteger function.
• dec_quad_is_logical
  Safe binding to decQuadIsLogical function.
• dec_quad_is_nan
  Safe binding to decQuadIsNaN function.
• dec_quad_is_negative
  Safe binding to decQuadIsNegative function.
• dec_quad_is_normal
  Safe binding to decQuadIsNormal function.
• dec_quad_is_positive
  Safe binding to decQuadIsPositive function.
• dec_quad_is_signaling
  Safe binding to decQuadIsSignaling function.
• dec_quad_is_signalling
  Safe binding to decQuadIsSignalling function.
• dec_quad_is_zero
  Safe binding to decQuadIsZero function.
• dec_quad_minus
  Safe binding to decQuadMinus function.
• dec_quad_multiply
  Safe binding to decQuadMultiply function.
• dec_quad_plus
  Safe binding to decQuadPlus function.
• dec_quad_quantize
  Safe binding to decQuadQuantize function.
• dec_quad_reduce
  Safe binding to decQuadReduce function.
• dec_quad_remainder
  Safe binding to decQuadRemainder function.
• dec_quad_scale_b
  Safe binding to decQuadScaleB function.
• dec_quad_subtract
  Safe binding to decQuadSubtract function.
• dec_quad_to_int32
  Safe binding to decQuadToInt32 function.
• dec_quad_to_integral_value
  Safe binding to decQuadToIntegralValue function.
• dec_quad_to_string
  Safe binding to decQuadToString function.
• dec_quad_to_uint32
  Safe binding to decQuadToUInt32 function.
• dec_quad_zero
  Safe binding to decQuadZero function.
• dec_single_from_string
  Safe binding to decSingleFromString function.
• dec_single_to_string
  Safe binding to decSingleToString function.
• dec_single_zero
  Safe binding to decSingleZero function.
• decimal32FromNumber^⚠
  Unsafe binding to decimal32FromNumber function.
• decimal32ToNumber^⚠
  Unsafe binding to decimal32ToNumber function.
• decimal32_from_number
  Safe binding to decimal32FromNumber function.
• decimal32_to_number
  Safe binding to decimal32ToNumber function.
• decimal64FromNumber^⚠
  Unsafe binding to decimal64FromNumber function.
• decimal64ToNumber^⚠
  Unsafe binding to decimal64ToNumber function.
• decimal64_from_number
  Safe binding to decimal64FromNumber function.
• decimal64_to_number
  Safe binding to decimal64ToNumber function.
• decimal128FromNumber^⚠
  Unsafe binding to decimal128FromNumber function.
• decimal128ToNumber^⚠
  Unsafe binding to decimal128ToNumber function.
• decimal128_from_number
  Safe binding to decimal128FromNumber function.
• decimal128_to_number
  Safe binding to decimal128ToNumber function.

Unions

• DecDouble
  64-bit decimal number.
• DecQuad
  128-bit decimal number.
• DecSingle
  32-bit decimal number.