towupper() function in C/C++
The towupper() is a built-in function in C/C++ which converts the given wide character into uppercase. It is defined within the cwctype header file of C++. Syntax:
wint_t towupper( wint_t ch )
Parameter: The function accepts a single mandatory parameter ch which specifies the wide character which we have to convert into uppercase. Return Value: The function returns two values as shown below.
- If the ch has an uppercase version, then it is converted into it.
- If it is not then no modification happens.
Below programs illustrates the above function. Program 1:
CPP
#include <cwchar>
#include <cwctype>
#include <iostream>
using namespace std;
int main()
{
wchar_t str[] = L"GeeksforGeeks";
wcout << L"The uppercase version of \""
<< str << L"\" is ";
for ( int i = 0; i < wcslen(str); i++)
putwchar(towupper(str[i]));
return 0;
}
|
Output:
The uppercase version of "GeeksforGeeks" is GEEKSFORGEEKS
Program 2:
CPP
#include <cwchar>
#include <cwctype>
#include <iostream>
using namespace std;
int main()
{
wchar_t str[] = L"hello Ishwar 123!@#";
wcout << L"The uppercase version of \""
<< str << L"\" is ";
for ( int i = 0; i < wcslen(str); i++)
putwchar(towupper(str[i]));
return 0;
}
|
Output:
The uppercase version of "hello Ishwar 123!@#" is HELLO ISHWAR 123!@#
Last Updated :
13 Feb, 2023
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