strncasecmp()

Character string comparison with length specified and ignored letter case.

  #include <extras/extras_string.h>
  
  int strncasecmp(const char *s1, const char *s2, size_t max);    

str1

A pointer to a character string.

str2

A pointer to a character string.

max

The maximum number of characters to compare.

This function compares the characters at s1 and s2, ignoring letter case. It stops when it reaches the null character or when it has compared max characters.

This function returns one of these values:

• zero if all characters in s1 are identical to and appear in the same order as the characters in s2
• a negative value if the numeric value of first non-matching character in s1 is less than its counterpart in s2
• a positive value if the numeric value of first non-matching character in s1 is greater than its counterpart in s2

This facility is not specified in the ISO/IEC standards. It is an EWL extension of the standard libraries.