Floating-point extensions part 4: supplementary functions
Floating-point extensions for C - Part 4: Supplementary functions, ISO/IEC TS 18661-4:2015, defines the following new components for the C standard library, as recommended by ISO/IEC/IEEE 60559:2011 (the current revision of IEEE-754)
__STDC_IEC_60559_FUNCS__ |
integer constant of type long and value 201506L (macro constant) |
Defined in header
<math.h> | |
compute 2x -1 (function) | |
(FP Ext 4 TS) |
compute 10x (function) |
compute 10x -1 (function) | |
(FP Ext 4 TS) |
compute ln(1+x) (same as log1p) (function) |
compute log 2(1+x) (function) | |
compute log 10(1+x) (function) | |
(FP Ext 4 TS) |
compute the inverse square root x-1/2 (function) |
compute compound interest, (1+x)n (function) | |
(FP Ext 4 TS) |
compute the nth root of x, x1/n (function) |
(FP Ext 4 TS) |
compute x raised to the nth power, where n is integer (function) |
(FP Ext 4 TS) |
compute x raised to the y power, xy (function) |
compute arccos(x)/π (measuring the angle in half-revolutions) (function) | |
compute arcsin(x)/π (measuring the angle in half-revolutions) (function) | |
compute arctan(x)/π (measuring the angle in half-revolutions) (function) | |
compute arctan(y/x)/π (measuring the angle in half-revolutions) (function) | |
(FP Ext 4 TS) |
compute cos(πx) (measuring the angle in half-revolutions) (function) |
(FP Ext 4 TS) |
compute sin(πx) (measuring the angle in half-revolutions) (function) |
(FP Ext 4 TS) |
compute tan(πx) (measuring the angle in half-revolutions) (function) |
compute the sum of n members of an array (function) | |
compute the sum of the absolute values of n members of an array (function) | |
compute the sum of squares of n members of an array (function) | |
compute the dot product between n members of two arrays (function) | |
compute the product of n members of an array as a scaled value and a scale factor (function) | |
compute the dot product of n members of two arrays as a scaled value and a scale factor (function) | |
compute the product of the differences between corresponding n members of two arrays as a scaled value and a scale factor (function) | |
crexp(optional) (FP Ext 4 TS) |
correctly-rounded version of exp (function) |
crexpm1(optional) (FP Ext 4 TS) |
correctly-rounded version of expm1 (function) |
crexp2(optional) (FP Ext 4 TS) |
correctly-rounded version of exp2 (function) |
crexp2m1(optional) (FP Ext 4 TS) |
correctly-rounded version of exp2m1 (function) |
crexp10(optional) (FP Ext 4 TS) |
correctly-rounded version of exp10 (function) |
crexp10m1(optional) (FP Ext 4 TS) |
correctly-rounded version of exp10m1 (function) |
crlog(optional) (FP Ext 4 TS) |
correctly-rounded version of log (function) |
crlog2(optional) (FP Ext 4 TS) |
correctly-rounded version of log2 (function) |
crlog10(optional) (FP Ext 4 TS) |
correctly-rounded version of log10 (function) |
crlog1p(optional) (FP Ext 4 TS) |
correctly-rounded version of log1p (function) |
crlogp1(optional) (FP Ext 4 TS) |
correctly-rounded version of logp1 (function) |
crlog2p1(optional) (FP Ext 4 TS) |
correctly-rounded version of log2p1 (function) |
crlog10p1(optional) (FP Ext 4 TS) |
correctly-rounded version of log10p1 (function) |
crrsqrt(optional) (FP Ext 4 TS) |
correctly-rounded version of rsqrt (function) |
crcompoundn(optional) (FP Ext 4 TS) |
correctly-rounded version of compoundn (function) |
crrootn(optional) (FP Ext 4 TS) |
correctly-rounded version of rootn (function) |
crpown(optional) (FP Ext 4 TS) |
correctly-rounded version of pown (function) |
crpow(optional) (FP Ext 4 TS) |
correctly-rounded version of pow (function) |
crpowr(optional) (FP Ext 4 TS) |
correctly-rounded version of powr (function) |
crsin(optional) (FP Ext 4 TS) |
correctly-rounded version of sin (function) |
crcos(optional) (FP Ext 4 TS) |
correctly-rounded version of cos (function) |
crtan(optional) (FP Ext 4 TS) |
correctly-rounded version of tan (function) |
crsinpi(optional) (FP Ext 4 TS) |
correctly-rounded version of sinpi (function) |
crcospi(optional) (FP Ext 4 TS) |
correctly-rounded version of cospi (function) |
crtanpi(optional) (FP Ext 4 TS) |
correctly-rounded version of tanpi (function) |
crasinpi(optional) (FP Ext 4 TS) |
correctly-rounded version of asinpi (function) |
cracospi(optional) (FP Ext 4 TS) |
correctly-rounded version of acospi (function) |
cracospi(optional) (FP Ext 4 TS) |
correctly-rounded version of acospi (function) |
cratanpi(optional) (FP Ext 4 TS) |
correctly-rounded version of atanpi (function) |
cratan2pi(optional) (FP Ext 4 TS) |
correctly-rounded version of atan2pi (function) |
crasin(optional) (FP Ext 4 TS) |
correctly-rounded version of asin (function) |
cracos(optional) (FP Ext 4 TS) |
correctly-rounded version of acos (function) |
cratan(optional) (FP Ext 4 TS) |
correctly-rounded version of atan (function) |
cratan2(optional) (FP Ext 4 TS) |
correctly-rounded version of atan2 (function) |
crsinh(optional) (FP Ext 4 TS) |
correctly-rounded version of sinh (function) |
crcosh(optional) (FP Ext 4 TS) |
correctly-rounded version of cosh (function) |
crtanh(optional) (FP Ext 4 TS) |
correctly-rounded version of tanh (function) |
crasinh(optional) (FP Ext 4 TS) |
correctly-rounded version of asinh (function) |
cracosh(optional) (FP Ext 4 TS) |
correctly-rounded version of acosh (function) |
cratanh(optional) (FP Ext 4 TS) |
correctly-rounded version of atanh (function) |
crhypot(optional) (FP Ext 4 TS) |
correctly-rounded version of hypot (function) |
Defined in header
<complex.h> | |
cexp2m1(optional) (FP Ext 4 TS) |
complex number version of exp2m1 (function) |
cexp10(optional) (FP Ext 4 TS) |
complex number version of exp10 (function) |
cexp10m1(optional) (FP Ext 4 TS) |
complex number version of exp10m1 (function) |
clogp1(optional) (FP Ext 4 TS) |
complex number version of logp1 (function) |
clog2p1(optional) (FP Ext 4 TS) |
complex number version of log2p1 (function) |
clog10p1(optional) (FP Ext 4 TS) |
complex number version of log10p1 (function) |
crsqrt (optional) (FP Ext 4 TS) |
complex number version of rsqrt (function) |
ccompoundn (optional) (FP Ext 4 TS) |
complex number version of compoundn (function) |
crootn(optional) (FP Ext 4 TS) |
complex number version of rootn (function) |
cpown (optional) (FP Ext 4 TS) |
complex number version of pown (function) |
cpowr(optional) (FP Ext 4 TS) |
complex number version of powr (function) |
cacospi(optional) (FP Ext 4 TS) |
complex number version of acospi (function) |
casinpi(optional) (FP Ext 4 TS) |
complex number version of asinpi (function) |
catanpi(optional) (FP Ext 4 TS) |
complex number version of atanpi (function) |
ccospi(optional) (FP Ext 4 TS) |
complex number version of cospi (function) |
csinpi(optional) (FP Ext 4 TS) |
complex number version of sinpi (function) |
ctanpi(optional) (FP Ext 4 TS) |
complex number version of tanpi (function) |
Notes
All functions added to the C library by this extension are only declared if a macro __STDC_WANT_IEC_60559_FUNCS_EXT__ is defined before math.h is included.
The decimal floating-point variants of every function are only defined if __STDC_WANT_IEC_60559_DFP_EXT__ is also defined before math.h is included.
The extended precision variants of every function are only defined if __STDC_WANT_IEC_60559_TYPES_EXT__ is defined before math.h is included.
The correctly-rounded versions of all functions (with the cr- prefix) are optional.