Comparisons in

About Comparisons

In C++, you can compare values using the comparison operators.

The result of these comparisons is always a boolean value:

int a{3};

bool eq1 = a != 4; // true

bool eq2 = a > 5;  // false

The operators == and != check whether a value is equal to another or not, respectively. Here are some common examples:

bool eq3 = 2 == 3; // false, integer comparison

bool eq4 = 2.1 != 2.2; // true, float comparison 

bool eq5 = "hello" == "hello"; // true, string comparison

The other operators check if one value is greater than (>), greater or equal to (>=), less than (<), and less or equal to (<=) to another value. This kind of comparison is available for numbers and strings. When comparing strings, the dictionary order (also known as lexicographic order) is followed.

bool eq6 = 2 > 3; // false, integer comparison

bool eq7 = 1.2 < 1.3; // true, float comparison

bool eq8 = "Hello" < "World"; // true, string comparison