function for searching without caring about case matching

findString_noCase.h

#include <string>
#include <cctype>

bool findStringIC(const std::string & strHaystack, const std::string & strNeedle) {
	auto it = std::search(
				strHaystack.begin(), strHaystack.end(),
				strNeedle.begin(),   strNeedle.end(),
				[](char ch1, char ch2) { return std::tolower(ch1) == std::tolower(ch2); }
	);
	return (it != strHaystack.end() );
}