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:
CPP
// Program to illustrate // toiswprint() function #include <cwchar> #include <cwctype> #include <iostream> using namespace std; int main() { wchar_t str[] = L"Beginner\tfor\tBeginner"; 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 Beginner, for, Beginner
Program 2:
CPP
// Program to illustrate // toiswprint() 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, !@#