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C

round()


This function returns the nearest integer value of the float/double/long double argument passed to this function. If decimal value is from ”.1 to .5″, it returns integer value less than the argument. If decimal value is from “.6 to .9″, it returns the integer value greater than the argument.

Syntax:
j = round(i);


Example:

 #include 
#include 
 int main()
{
       float i=5.4, j=5.6;
       printf("round of  %f is  %f\n", i, round(i));
       printf("round of  %f is  %f\n", j, round(j));
       return 0;
}
Output:

round of 5.400000 is 5.000000
round of 5.600000 is 6.000000


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