- NAME
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floor - largest integer value not greater than x.
- SYNOPSIS
#include <math.h>
double floor(double x);- DESCRIPTION
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These function returns the largest integral value that is not greater than x. For example, floor(0.5) is 0.0, and floor(-0.5) is -1.0.
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Warning
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You’ll also need to link the program against the math library (see example below) using the -lm compile/link option.
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- RETURN VALUE
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The floor function returns a floating point number that contains the largest integer value that is not greater than x.
- SEE ALSO
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ceil
- EXAMPLE
link:src/floor.c[role=include]- OUTPUT
$ gcc -Wall -lm floor.c $ ./a.out Enter a floating point number > 45.98 FLOOR(45.980000) = 45.000000 $ ./a.out Enter a floating point number > -45.98 FLOOR(-45.980000) = -46.000000