std::round, std::lround, std::llround

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Defined in header `<cmath>`

int round( float arg );		(C++11 feature)

int round( double arg );		(C++11 feature)

int round( long double arg );		(C++11 feature)

long lround( float arg );		(C++11 feature)

long lround( double arg );		(C++11 feature)

long lround( long double arg );		(C++11 feature)

long long llround( float arg );		(C++11 feature)

long long llround( double arg );		(C++11 feature)

long long llround( long double arg );		(C++11 feature)

Computes nearest integer to arg. Number is rounded away from zero in halfway cases

arg - floating point value

nearest integer to arg.

nearest integer not greater than the given value
(function)

nearest integer not less than the given value
(function)

trunc (C++11)

nearest integer not greater in magnitude than the given value
(function)