[lang-ref] ( slice_from_m_to_n ) ( cpp )

TEST(StringSplit, SliceFromMToN) {
	// s.substr(m, n - m + 1)
	string text = "0123456789";
	unsigned int m = 3;
	unsigned int n = 5;

	string part = text.substr(m, n - m + 1);

    EXPECT_EQ(part, "345");
}