C++ Math llround() Function

C++ Math llround() Function with tutorial for beginners and professionals with examples on isgreaterequal(), less(), islessequal(), islessgreater(), isunordered(), exp(), frexp(), ldexp(), log(), log10(), modf(), exp2(), expm1(), log1p(), log2(), logb(), scalbn(), scalbln() etc.

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C++ Math llround()

This function is used to round off the given value and cast to long long integer.

Syntax

Suppose a number is 'x'. Syntax would be:

long long int llround(data_type x);

Parameter

x: The value that can be either double or float.

Return value

It returns the rounded value of x. The return type of the function is long long integer.

Example 1

Let's see a simple example.

#include 
#include
using namespace std;
int main()
{
    float x=50.8;
    std::cout <<"The value of x is :" <

Output:

The value of x is :50.8
The rounded value of x is :51

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