C Language: floor function
(Floor)
In the C Programming Language, the floor function returns the largest integer that is smaller than or equal to x (ie: rounds downs the nearest integer).
Syntax
The syntax for the floor function in the C Language is:
double floor(double x);
Parameters or Arguments
- x
- The value to round down to the nearest integer.
Returns
The floor function returns the largest integer that is smaller than or equal to x.
Required Header
In the C Language, the required header for the floor function is:
#include <math.h>
Applies To
In the C Language, the floor function can be used in the following versions:
- ANSI/ISO 9899-1990
floor Example
/* Example using floor by TechOnTheNet.com */ #include <stdio.h> #include <math.h> int main(int argc, const char * argv[]) { /* Define temporary variables */ double value; double result; /* Assign the value we will find the floor of */ value = 1.6; /* Calculate the floor of value */ result = floor(value); /* Display the result of the calculation */ printf("The floor of %f is %f\n", value, result); return 0; }
When compiled and run, this application will output:
The floor of 1.600000 is 1.000000
Similar Functions
Other C functions that are similar to the floor function:
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