iswgraph() in C/C++ with Examples
Last Updated :
13 Feb, 2023
The iswgraph() is a built-in function in C/C++ which checks if the given wide character has a graphical representation or not. It is defined within the cwctype header file of C++. By default, the following characters are graphic:
- Digits (0 to 9)
- Uppercase letters (A to Z)
- Lowercase letters (a to z)
- Punctuation characters (!”#$%&'()*+, -./:;?@[\]^_`{|}~)
Syntax:
int iswgraph(ch)
Parameter: The function accepts a single mandatory parameter ch which specifies the wide character which we have to check that if it has a graphical representation or not. Return Value: The function returns two values as shown below.
- If the ch has a graphical representation character, then a non-zero value is returned.
- If it is not a graphical representation character, then 0 is returned.
Below programs illustrates the above function. Program 1:
CPP
#include <cwctype>
#include <iostream>
using namespace std;
int main()
{
wchar_t ch1 = '?' ;
wchar_t ch2 = ' ' ;
if (iswgraph(ch1))
wcout << ch1 << " has graphical representation ";
else
wcout << ch1 << " does not have graphical representation ";
wcout << endl;
if (iswgraph(ch2))
wcout << ch2 << " has graphical representation ";
else
wcout << ch2 << " does not have graphical representation ";
return 0;
}
|
Output:
? has graphical representation
does not have graphical representation
Program 2:
CPP
#include <cwctype>
#include <iostream>
using namespace std;
int main()
{
wchar_t ch1 = ' ' ;
wchar_t ch2 = '3' ;
if (iswgraph(ch1))
wcout << ch1 << " has graphical representation ";
else
wcout << ch1 << " does not have graphical representation ";
wcout << endl;
if (iswgraph(ch2))
wcout << ch2 << " has graphical representation ";
else
wcout << ch2 << " does not have graphical representation ";
return 0;
}
|
Output:
does not have graphical representation
3 has graphical representation
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