round() functions to get nearest integer a number

round() : Nearest integer value of a number

We will get nearest integer part of a decimal value by using round() function. If the decimal part is less than .5 then lower side integer is returned. If decimal part is more than or equal .5 then higher side is returned.

round(x)

x = input number

Example with integer variables

#include 
#include 
int main(void){
     int  x1,x2,x3,x4;
     x1=round(13.345);
     x2=round(12.656);
     x3=round(-13.21);
     x4=round(-14.67);
     printf("x1=%d , x2=%d,x3=%d,x4=%d", x1,x2,x3,x4);
     return 0;
}

The above code will give this output.

x1=13, x2=13, x3=-13,x4=-15

Example with float variables

#include <stdio.h>
#include <math.h>
int main(void){
     float  x1,x2,x3,x4;
     x1=round(13.545);
     x2=round(12.656);
     x3=round(-13.51);
     x4=round(-14.67);
     printf("x1=%f , x2=%f,x3=%f,x4=%f", x1,x2,x3,x4);
     return 0;
}

Output is here

x1=14.000000, x2=13.000000, x3=-14.000000,x4=-15.000000

Math functions in C trunc() C- Tutorials

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round() : Nearest integer value of a number

Example with integer variables

Example with float variables

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