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Function Details : strcasecmp

intstrcasecmp(const char * s1,const char * s2) ;

Return Type : int

Integer type (typically 4 bytes, -2,147,483,648 to 2,147,483,647)
Read about return values of strcasecmp function .

1st Parameter Type : const char *

Pointer to read-only string

1st Parameter

Pointer to the first null-terminated string to compare.

2nd Parameter Type : const char *

Pointer to read-only string

2nd Parameter

Pointer to the second null-terminated string to compare.

Read more about parameters of strcasecmp in parameters section
The strcasecmpfunction in C language Compares two strings ignoring the case of the characters.
The strcasecmp function compares two strings s1 and s2, ignoring the case of the characters. It returns an integer less than, equal to, or greater than zero if s1 is found, respectively, to be less than, to match, or be greater than s2. This function is not part of the C standard library but is available in POSIX systems.
The strcasecmpfunction takes 2 parameters:
  • •
    const char * `s1`: Pointer to the first null-terminated string to compare.
  • •
    const char * `s2`: Pointer to the second null-terminated string to compare.
Compares two strings `s1` and `s2` in a case-insensitive manner. Returns a value less than, equal to, or greater than zero if `s1` is found to be less than, equal to, or greater than `s2`, respectively. Uses the current locale for character case conversion.
The strcasecmp function return value :
  • Returns an integer less than, equal to, or greater than zero if s1 is found, respectively, to be less than, to match, or be greater than s2

Output

This example demonstrates basic usage of strcasecmp to compare strings ignoring case.