The $(D_PSYMBOL dstring) first string to compare to
The $(D_PSYMBOL wstring) to compare the first $(D_PSYMBOL dstring) against
$(D_KEYWORD true) if the argument is not $(D_KEYWORD null) and it represents an equivalent $(D_PSYMBOL dstring) ignoring case; $(D_KEYWORD false) otherwise
AssertException if the length of any of the dstrings are 0
opEquals(Object)
Compares the $(D_PSYMBOL dstring) to another $(D_PSYMBOL dstring), ignoring case considerations. Two wstrings are considered equal ignoring case if they are of the same length and corresponding characters in the two wstrings are equal ignoring case.