toupper
From cppreference.com
| Defined in header <ctype.h>
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| int toupper( int ch ); |
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Converts the given character to uppercase.
[edit] Parameters
| ch | - | character to be converted |
[edit] Return value
Converted character or ch if no such conversion was possible
[edit] See also
| converts a character to lowercase (function) | |
| converts a wide character to uppercase (function) | |
| C++ documentation for toupper
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