4-9) Computes the nearest integer value to num (in integer format), rounding halfway cases away from zero, regardless of the current rounding mode. The library provides overloads of std::lround and …

1-3) Computes the nearest integer value to arg (in floating-point format), rounding halfway cases away from zero, regardless of the current rounding mode.

Common mathematical functions C++

Each of these macro constants expands to a nonnegative integer constant expression, which can be used with std::fesetround and std::fegetround to indicate one of the supported floating-point rounding …

Returns the value t representable in ToDuration that is the closest to d. If there are two such values, returns the even value (that is, the value t such that t % 2 == 0). The function does not participate in …

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The C++ numerics library includes common mathematical functions and types, as well as optimized numeric arrays and support for random number generation.

C++ reference C++

The value of std::numeric_limits<T>::round_style identifies the rounding style used by the floating-point type T whenever a value that is not one of the exactly repesentable values of T is stored in an object …

C17 standard (ISO/IEC 9899:2018): 7.8 Format conversion of integer types <inttypes.h> (p: 158-160) 7.12 Mathematics <math.h> (p: 169-190) 7.22 General utilities <stdlib.h> (p: 248-262) 7.31.5 Format …