Isalnum In Dev C++
- The C Standard Library
- C Standard Library Resources
Isalnum (cctype) Check if character is alphanumeric (function ) isalpha Check if character is alphabetic using locale (function template ) isdigit Check if character is a. For a detailed chart on what the different ctype functions return for each character of the standard ANSII character set, see the reference for the cctype header. In C, a locale-specific template version of this function ( isalnum) exists in header locale.
- C Programming Resources
- Selected Reading
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. (C17) chartraits Null-terminated wide strings. Isalnum iswalnum. Isalpha iswalpha. Isupper iswupper. Islower iswlower. Isdigit iswdigit. Isxdigit iswxdigit. Decimal hexadecimal octal. This function is the wide-character equivalent of isalnum: If c translates with wctob to a character for which isalnum is true, it is always considered alphanumeric by this function too. In C, a locale-specific template version of this function ( isalnum ) exists in header for all character types. The C library function int isalnum(int c) checks if the passed character is alphanumeric. Following is the declaration for isalnum function. Int isalnum(int c); Parameters. C − This is the character to be checked. Return Value. This function returns non-zero value if c is a digit or a letter, else it returns 0.
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Description
The C library function int isalpha(int c) checks if the passed character is alphabetic.
Isalnum In Dev C 2017
Declaration
Following is the declaration for isalpha() function.
Parameters
c − This is the character to be checked.
Return Value
Python String Isalnum
This function returns non-zero value if c is an alphabet, else it returns 0.
Isalnum In C
Example
The following example shows the usage of isalpha() function.
Isalnum In C++
Let us compile and run the above program, to produce the following result −