iswprint() in C/C++ with Examples
The iswprint() is a built-in function in C/C++ which checks if the given wide character can be printed or not. It is defined within the cwctype header file of C++. By default, the following characters are printable:
- Digits (0 to 9)
- Uppercase letters (A to Z)
- Lowercase letters (a to z)
- Punctuation characters (!”#$%&'()*+, -./:;?@[\]^_`{|}~)
- Space
Syntax:
int iswprint(ch)
Parameters: The function accepts a single mandatory parameter ch which specifies the wide character which has to be checked if printable or not.
Return Value: The function returns two values as shown below.
- If the parameter ch, is printable, then a non-zero value is returned.
- If it is not a printable character then 0 is returned.
Below programs illustrates the above function.
Program 1:
// Program to illustrate// towprint() function#include <cwchar>#include <cwctype>#include <iostream>using namespace std;int main(){ wchar_t str[] = L"Geeks\tfor\tGeeks"; for (int i = 0; i < wcslen(str); i++) { // Function to check if the characters are // printable or not. If not, then replace // all non printable character by comma if (!iswprint(str[i])) str[i] = ', '; } wcout << "Printing, if the given wide character cannot be printed\n"; wcout << str; return 0;} |
Output:
Printing , if the given wide character cannot be printed Geeks, for, Geeks
Program 2:
// Program to illustrate// towprint() function#include <cwchar>#include <cwctype>#include <iostream>using namespace std;int main(){ wchar_t str[] = L"Ishwar Gupta\t123\t!@#"; for (int i = 0; i < wcslen(str); i++) { // Function to check if the characters are // printable or not. If not, then replace // all non printable character by comma if (!iswprint(str[i])) str[i] = ', '; } wcout << "Printing, if the given wide character cannot be printed\n"; wcout << str; return 0;} |
Output:
Printing , if the given wide character cannot be printed Ishwar Gupta, 123, !@#
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