How can I parse an integer from a string in Zig?

Question

What is the best way to parse an integer from a string in Zig and specify the resulting integer type?

const foo = "22";

How would I convert foo to an i32, for example?

Answer 1

After looking through Zig's Standard Library Documentation, I've found std.fmt.parseInt, which allows you to parse a string to an integer of any size, signed or unsigned (e.g. i32, u64).

Example:

const foo = "22";

const integer = try std.fmt.parseInt(i32, foo, 10);