std::toupper
From cppreference.com
Defined in header
<cctype>
|
||
int toupper( int ch );
|
||
Converts the given character to uppercase according to the character conversion rules defined by the currently installed C locale.
In the default "C" locale, the following lowercase letters abcdefghijklmnopqrstuvwxyz
are replaced with respective uppercase letters ABCDEFGHIJKLMNOPQRSTUVWXYZ
.
Contents |
[edit] Parameters
ch | - | character to be converted. If the value of ch is not representable as unsigned char and does not equal EOF, the behavior is undefined.
|
[edit] Return value
Converted character or ch
if no uppercase version is defined by the current C locale.
[edit] Example
Run this code
#include <iostream> #include <cctype> #include <clocale> int main() { unsigned char c = '\xb8'; // the character ž in ISO-8859-15 // but ¸ (cedilla) in ISO-8859-1 std::setlocale(LC_ALL, "en_US.iso88591"); std::cout << std::hex << std::showbase; std::cout << "in iso8859-1, toupper('0xb8') gives " << std::toupper(c) << '\n'; std::setlocale(LC_ALL, "en_US.iso885915"); std::cout << "in iso8859-15, toupper('0xb8') gives " << std::toupper(c) << '\n'; }
Output:
in iso8859-1, toupper('0xb8') gives 0xb8 in iso8859-15, toupper('0xb8') gives 0xb4
[edit] See also
converts a character to lowercase (function) |
|
converts a character to uppercase using the ctype facet of a locale (function template) |
|
converts a wide character to uppercase (function) |
|
C documentation for toupper
|