std.strcasecmp
Available inall subroutines.
Compares strings for equality using case-insensitive comparison.
This is equivalent to converting both strings to the same case
(i.e. by std.toupper or std.tolower) and comparing the result.
Use the == operator for case-sensitive string comparisons.
This function does not support UTF-8 encoded strings.
For example, "smörgås" and "SMÖRGÅS" compare false.
If either string is not-set, std.strcasecmp will return false.
This matches the behavior for the == operator.