isnormal() in C++
This function is defined in <cmath.h> . By using isnormal() function, we determines that whether the given number is normal (neither zero, infinite nor NAN) or not. This function returns 1 if the number is normal else return zero.
Syntax:
bool isnormal(float x);
or
bool isnormal(double x);
or
bool isnormal(long double x);
Parameters: This functions takes a mandatory parameter x which represents the floating point value.
Returns: If the given value is normal then the function returns 1 otherwise the function returns zero.
Below program illustrate the isnormal() function in C++:
Example 1:- To show with float value
// c++ program to demonstrate // example of isnormal() function. #include <bits/stdc++.h> using namespace std; int main() { float f = 7.0F; // check for non-zero value cout << "isnormal(7.0) is = " << isnormal(f) << endl; // check for zero f = 0.0F; cout << "isnormal(0.0) is = " << isnormal(f) << endl; // check for infinite value f = 9.2F; cout << "isnormal(9.2/0.0) is = " << isnormal(f / 0.0) << endl; return 0; } |
chevron_right
filter_none
Output:
isnormal(7.0) is = 1 isnormal(0.0) is = 0 isnormal(9.2/0.0) is = 0
Example 2:- To show with double value
// c++ program to demonstrate // example of isnormal() function. #include <bits/stdc++.h> using namespace std; int main() { double f = 7.0; // check for non-zero value cout << "isnormal(7.0) is = " << isnormal(f) << endl; // check for zero f = 0.0; cout << "isnormal(0.0) is = " << isnormal(f) << endl; // check for infinite value f = 9.2; cout << "isnormal(9.2/0.0) is = " << isnormal(f / 0.0) << endl; return 0; } |
chevron_right
filter_none
Output:
isnormal(7.0) is = 1 isnormal(0.0) is = 0 isnormal(9.2/0.0) is = 0
Example 3:- To show with long double value
// c++ program to demonstrate // example of isnormal() function. #include <bits/stdc++.h> using namespace std; int main() { long double f = 7.0; // check for non-zero value cout << "isnormal(7.0) is = " << isnormal(f) << endl; // check for zero f = 0.0; cout << "isnormal(0.0) is = " << isnormal(f) << endl; // check for infinite value f = 9.2; cout << "isnormal(9.2/0.0) is = " << isnormal(f / 0.0) << endl; return 0; } |
chevron_right
filter_none
Output:
isnormal(7.0) is = 1 isnormal(0.0) is = 0 isnormal(9.2/0.0) is = 0
Recommended Posts:
- cin get() in C++ with Examples
- Difference between Increment and Decrement Operators
- Map of Vectors in C++ STL with Examples
- Problem in comparing Floating point numbers and how to compare them correctly?
- exit(0) vs exit(1) in C/C++ with Examples
- C++ program to print all Even and Odd numbers from 1 to N
- Reverse the content of a file and store it in another
- Minimum cells to be flipped to get a 2*2 submatrix with equal elements
- Nested Loops in C++ with Examples
- _Find_first() function in C++ bitset with Examples
- _Find_next() function in C++ bitset with Examples
- Left-Right traversal of all the levels of N-ary tree
- Difference between Iterators and Pointers in C/C++ with Examples
- ostream::seekp(pos) method in C++ with Exmaples
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.
