- Std Isalnum
- Header File For Isalnum In Dev C++
- Isalnum In C++
- Isdigit In Dev C++
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Nov 26, 2016 isalpha and isdigit functions in C with cstring examples. Isalpha(c) is a function in C which can be used to check if the passed character is an alphabet or not. It returns a non-zero value if it’s an alphabet else it returns 0. C isalnum The isalphanum function returns a non-zero integer if an argument (character) passed to the function is an alphanumeric (alphabet and number) character. The Mingw32 Alternate C Runtime Library is being developed as a replacement for the Microsoft C Runtime Library (MSVCRT.DLL) because there is a need for a C Runtime Library for Mingw32 users which is not dependent on the Microsoft C Runtime Library, open-source, not licensed under the GPL or LGPL, and can be used freely for commercial use.
< cpp | string | wide
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Technical Specifications |
Std Isalnum
Strings libraryNull-terminated strings | ||||
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Header File For Isalnum In Dev C++
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Defined in header <cwctype> |
Checks if the given wide character is an alphanumeric character, i.e. either a number (
0123456789
), an uppercase letter (ABCDEFGHIJKLMNOPQRSTUVWXYZ
), a lowercase letter (abcdefghijklmnopqrstuvwxyz
) or any alphanumeric character specific to the current locale.If the value of
ch
is neither representable as a wchar_t nor equal to the value of the macro WEOF, the behavior is undefined.Contents |
[edit]Parameters
ch | - | wide character |
[edit]Return value
Non-zero value if the wide character is a alphanumeric character, zero otherwise. Western digital my cloud software mac.
[edit]Notes
ISO 30112 specifies which Unicode characters are include in POSIX alnum category.
Isalnum In C++
[edit]Example
Output:
[edit]See also
Isdigit In Dev C++
checks if a character is classified as alphanumeric by a locale (function template)[edit] | |
checks if a character is alphanumeric (function)[edit] | |
C documentation for iswalnum |
ASCII values | characters | iscntrl iswcntrl | isprint iswprint | isspace iswspace | isblank iswblank Mac demarco old dog download 320. | isgraph iswgraph | ispunct iswpunct | Mixed in key vst crack. isalnum iswalnum | Traktor pro 3 vs serato. isalpha iswalpha | isupper iswupper Download nicki minaj the pinkprint album. | islower iswlower | isdigit iswdigit | isxdigit iswxdigit | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
decimal | hexadecimal | octal | |||||||||||||
0–8 | x0 –x8 | 0 –10 | control codes (NUL , etc.) | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
9 | x9 | 11 | tab (t ) | ≠0 | 0 | ≠0 | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
10–13 | xA –xD | 12 –15 | whitespaces (n , v , f , r ) | ≠0 | 0 | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
14–31 | xE –x1F | 16 –37 | control codes | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
32 | x20 | 40 | space | 0 | ≠0 | ≠0 | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
33–47 | x21 –x2F | 41 –57 | !'#$%&'()*+,-./ | 0 | ≠0 | 0 | 0 | ≠0 | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 |
48–57 | x30 –x39 | 60 –71 | 0123456789 | 0 | ≠0 | 0 | 0 | ≠0 | 0 | ≠0 | 0 | 0 | 0 | ≠0 | ≠0 |
58–64 | x3A –x40 | 72 –100 | :;<=>?@ | 0 | ≠0 | 0 | 0 | ≠0 | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 |
65–70 | x41 –x46 | 101 –106 | ABCDEF | 0 | ≠0 | 0 | 0 | ≠0 | 0 | ≠0 | ≠0 | ≠0 | 0 | 0 | ≠0 |
71–90 | x47 –x5A | 107 –132 | GHIJKLMNOP QRSTUVWXYZ | 0 | ≠0 | 0 | 0 | ≠0 | 0 | ≠0 | ≠0 | ≠0 | 0 | 0 | 0 |
91–96 | x5B –x60 | 133 –140 | []^_` | 0 | ≠0 | 0 | 0 | ≠0 | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 |
97–102 | x61 –x66 | 141 –146 | abcdef | 0 | ≠0 | 0 | 0 | ≠0 | 0 | ≠0 | ≠0 | 0 | ≠0 | 0 | ≠0 |
103–122 | x67 –x7A | 147 –172 | ghijklmnop qrstuvwxyz | 0 | ≠0 | 0 | 0 | ≠0 | 0 | ≠0 | ≠0 | 0 | ≠0 | 0 | 0 |
123–126 | x7B –x7E | 172 –176 | {|}~ | 0 | ≠0 | 0 | 0 | ≠0 | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 |
127 | x7F | 177 | backspace character (DEL ) | ≠0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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