| abs(int)labsllabs(C++11) |
computes absolute value of an integral value (\(\small{|x |
| div(int)ldivlldiv(C++11) |
computes quotient and remainder of integer division (function) [edit] |
| Defined in header |
|
| abs(std::intmax_t)imaxabs(C++11)(C++11) |
computes absolute value of an integral value (\(\small{|x |
| div(std::intmax_t)imaxdiv(C++11)(C++11) |
computes quotient and remainder of integer division (function) [edit] |
| Defined in header |
|
| Basic operations |
|
| abs(float)fabsfabsffabsl(C++11)(C++11) |
absolute value of a floating point value (\(\small{|x |
| fmodfmodffmodl(C++11)(C++11) |
remainder of the floating point division operation (function) [edit] |
| remainderremainderfremainderl(C++11)(C++11)(C++11) |
signed remainder of the division operation (function) [edit] |
| remquoremquofremquol(C++11)(C++11)(C++11) |
signed remainder as well as the three last bits of the division operation (function) [edit] |
| fmafmaffmal(C++11)(C++11)(C++11) |
fused multiply-add operation (function) [edit] |
| fmaxfmaxffmaxl(C++11)(C++11)(C++11) |
larger of two floating-point values (function) [edit] |
| fminfminffminl(C++11)(C++11)(C++11) |
smaller of two floating point values (function) [edit] |
| fdimfdimffdiml(C++11)(C++11)(C++11) |
positive difference of two floating point values (\({\small\max{(0, x-y)}}\)max(0, x-y)) (function) [edit] |
| nannanfnanl(C++11)(C++11)(C++11) |
not-a-number (NaN) (function) [edit] |
| Exponential functions |
|
| expexpfexpl(C++11)(C++11) |
returns e raised to the given power (\({\small e^x}\)ex) (function) [edit] |
| exp2exp2fexp2l(C++11)(C++11)(C++11) |
returns 2 raised to the given power (\({\small 2^x}\)2x) (function) [edit] |
| expm1expm1fexpm1l(C++11)(C++11)(C++11) |
returns e raised to the given power, minus 1 (\({\small e^x-1}\)ex-1) (function) [edit] |
| loglogflogl(C++11)(C++11) |
computes natural (base e) logarithm (\({\small\ln{x}}\)ln(x)) (function) [edit] |
| log10log10flog10l(C++11)(C++11) |
computes common (base 10) logarithm (\({\small\log_{10}{x}}\)log10(x)) (function) [edit] |
| log2log2flog2l(C++11)(C++11)(C++11) |
base 2 logarithm of the given number (\({\small\log_{2}{x}}\)log2(x)) (function) [edit] |
| log1plog1pflog1pl(C++11)(C++11)(C++11) |
natural logarithm (to base e) of 1 plus the given number (\({\small\ln{(1+x)}}\)ln(1+x)) (function) [edit] |
| Power functions |
|
| powpowfpowl(C++11)(C++11) |
raises a number to the given power (\(\small{x^y}\)xy) (function) [edit] |
| sqrtsqrtfsqrtl(C++11)(C++11) |
computes square root (\(\small{\sqrt{x}}\)√x) (function) [edit] |
| cbrtcbrtfcbrtl(C++11)(C++11)(C++11) |
computes cube root (\(\small{\sqrt[3]{x}}\)3√x) (function) [edit] |
| hypothypotfhypotl(C++11)(C++11)(C++11) |
computes hypotenuse \(\scriptsize{\sqrt{x^2+y^2}}\)√x2+y2 and \(\scriptsize{\sqrt{x^2+y^2+z^2}}\)√x2+y2+z2(since C++17) (function) [edit] |
| Trigonometric functions |
|
| sinsinfsinl(C++11)(C++11) |
computes sine (\({\small\sin{x}}\)sin(x)) (function) [edit] |
| coscosfcosl(C++11)(C++11) |
computes cosine (\({\small\cos{x}}\)cos(x)) (function) [edit] |
| tantanftanl(C++11)(C++11) |
computes tangent (\({\small\tan{x}}\)tan(x)) (function) [edit] |
| asinasinfasinl(C++11)(C++11) |
computes arc sine (\({\small\arcsin{x}}\)arcsin(x)) (function) [edit] |
| acosacosfacosl(C++11)(C++11) |
computes arc cosine (\({\small\arccos{x}}\)arccos(x)) (function) [edit] |
| atanatanfatanl(C++11)(C++11) |
computes arc tangent (\({\small\arctan{x}}\)arctan(x)) (function) [edit] |
| atan2atan2fatan2l(C++11)(C++11) |
arc tangent, using signs to determine quadrants (function) [edit] |
| Hyperbolic functions |
|
| sinhsinhfsinhl(C++11)(C++11) |
computes hyperbolic sine (\({\small\sinh{x}}\)sinh(x)) (function) [edit] |
| coshcoshfcoshl(C++11)(C++11) |
computes hyperbolic cosine (\({\small\cosh{x}}\)cosh(x)) (function) [edit] |
| tanhtanhftanhl(C++11)(C++11) |
computes hyperbolic tangent (\({\small\tanh{x}}\)tanh(x)) (function) [edit] |
| asinhasinhfasinhl(C++11)(C++11)(C++11) |
computes the inverse hyperbolic sine (\({\small\operatorname{arsinh}{x}}\)arsinh(x)) (function) [edit] |
| acoshacoshfacoshl(C++11)(C++11)(C++11) |
computes the inverse hyperbolic cosine (\({\small\operatorname{arcosh}{x}}\)arcosh(x)) (function) [edit] |
| atanhatanhfatanhl(C++11)(C++11)(C++11) |
computes the inverse hyperbolic tangent (\({\small\operatorname{artanh}{x}}\)artanh(x)) (function) [edit] |
| Error and gamma functions |
|
| erferfferfl(C++11)(C++11)(C++11) |
error function (function) [edit] |
| erfcerfcferfcl(C++11)(C++11)(C++11) |
complementary error function (function) [edit] |
| tgammatgammaftgammal(C++11)(C++11)(C++11) |
gamma function (function) [edit] |
| lgammalgammaflgammal(C++11)(C++11)(C++11) |
natural logarithm of the gamma function (function) [edit] |
| Nearest integer floating point operations |
|
| ceilceilfceill(C++11)(C++11) |
nearest integer not less than the given value (function) [edit] |
| floorfloorffloorl(C++11)(C++11) |
nearest integer not greater than the given value (function) [edit] |
| trunctruncftruncl(C++11)(C++11)(C++11) |
nearest integer not greater in magnitude than the given value (function) [edit] |
| roundroundfroundllroundlroundflroundlllroundllroundfllroundl(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11) |
nearest integer, rounding away from zero in halfway cases (function) [edit] |
| nearbyintnearbyintfnearbyintl(C++11)(C++11)(C++11) |
nearest integer using current rounding mode (function) [edit] |
| rintrintfrintllrintlrintflrintlllrintllrintfllrintl(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11)(C++11) |
nearest integer using current rounding mode withexception if the result differs (function) [edit] |
| Floating point manipulation functions |
|
| frexpfrexpffrexpl(C++11)(C++11) |
decomposes a number into significand and base-2 exponent (function) [edit] |
| ldexpldexpfldexpl(C++11)(C++11) |
multiplies a number by 2 raised to an integral power (function) [edit] |
| modfmodffmodfl(C++11)(C++11) |
decomposes a number into integer and fractional parts (function) [edit] |
| scalbnscalbnfscalbnlscalblnscalblnfscalblnl(C++11)(C++11)(C++11)(C++11)(C++11)(C++11) |
multiplies a number by FLT_RADIX raised to a power (function) [edit] |
| ilogbilogbfilogbl(C++11)(C++11)(C++11) |
extracts exponent of the number (function) [edit] |
| logblogbflogbl(C++11)(C++11)(C++11) |
extracts exponent of the number (function) [edit] |
| nextafternextafterfnextafterlnexttowardnexttowardfnexttowardl(C++11)(C++11)(C++11)(C++11)(C++11)(C++11) |
next representable floating-point value towards the given value (function) [edit] |
| copysigncopysignfcopysignl(C++11)(C++11)(C++11) |
copies the sign of a floating point value (function) [edit] |
| Classification and comparison |
|
| fpclassify(C++11) |
categorizes the given floating-point value (function) [edit] |
| isfinite(C++11) |
checks if the given number has finite value (function) [edit] |
| isinf(C++11) |
checks if the given number is infinite (function) [edit] |
| isnan(C++11) |
checks if the given number is NaN (function) [edit] |
| isnormal(C++11) |
checks if the given number is normal (function) [edit] |
| signbit(C++11) |
checks if the given number is negative (function) [edit] |
| isgreater(C++11) |
checks if the first floating-point argument is greater than the second (function) [edit] |
| isgreaterequal(C++11) |
checks if the first floating-point argument is greater or equal than the second (function) [edit] |
| isless(C++11) |
checks if the first floating-point argument is less than the second (function) [edit] |
| islessequal(C++11) |
checks if the first floating-point argument is less or equal than the second (function) [edit] |
| islessgreater(C++11) |
checks if the first floating-point argument is less or greater than the second (function) [edit] |
| isunordered(C++11) |
checks if two floating-point values are unordered (function) [edit] |