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C++ Programming/Code/Standard C Library/Functions/floor - Wikibooks, open books for an open world

#include <cmath>
double floor( double arg );

The function floor() returns the largest integer value not greater than arg.

// Example for positive numbers
y = 6.04;
x = floor( y );

would result in x being set to 6 (double 6.0).

// Example for negative numbers
y = -6.04;
x = floor( y );

would result in x being set to -7 (double -7.0).

Related topics

ceil - fmod

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