trimToString.cpp

#define CATCH_CONFIG_MAIN
#include <string>
#include <iostream>
#include "catch.hpp"

std::string trimToString(double dValue)
{
	std::string strRst = std::to_string(dValue);
	while (strRst.back() == '0') strRst.pop_back();
	if (strRst.back() == '.') strRst.pop_back();
	return strRst;
}

TEST_CASE("double trim to string", "[trimToString]") {
	REQUIRE(trimToString(23.5600) == "23.56");
	REQUIRE(trimToString(2356000) == "2356000");
	REQUIRE(trimToString(37.000) == "37");
}