Standard library header <cctype>
From cppreference.com
This header was originally in the C standard library as <ctype.h>
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This header is part of the null-terminated byte strings library.
Functions |
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checks if a character is alphanumeric (function) |
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checks if a character is alphabetic (function) |
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checks if a character is lowercase (function) |
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checks if a character is an uppercase character (function) |
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checks if a character is a digit (function) |
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checks if a character is a hexadecimal character (function) |
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checks if a character is a control character (function) |
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checks if a character is a graphical character (function) |
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checks if a character is a space character (function) |
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(C++11)
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checks if a character is a blank character (function) |
checks if a character is a printing character (function) |
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checks if a character is a punctuation character (function) |
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converts a character to lowercase (function) |
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converts a character to uppercase (function) |