Question

How to round float number to int in C

Answer 1

#include <stdio.h>

int roundFloat(float f) { 
    return f < 0 ? f - 0.5 : f + 0.5; 
} 
int main(int argc, char **argv)
{ 
	printf("%d\n", roundFloat(3.14)); 
	printf("%d\n", roundFloat(4.6)); 
	printf("%d\n", roundFloat(-1.3)); 
     
    return 0; 
}   
 

/*
run:
 
3
5
-1
 
*/

 

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