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// Top-level declarations are order-independent:
const print = std.debug.print;
const std = @import("std");
const os = std.os;
const assert = std.debug.assert;
pub fn main() void {
// integers
const one_plus_one: i32 = 1 + 1;
print("1 + 1 = {}\n", .{one_plus_one});
// floats
const seven_div_three: f32 = 7.0 / 3.0;
print("7.0 / 3.0 = {}\n", .{seven_div_three});
// boolean
print("{}\n{}\n{}\n", .{
true and false,
true or false,
!true,
});
// optional
var optional_value: ?[]const u8 = null;
assert(optional_value == null);
print("\noptional 1\ntype: {}\nvalue: {}\n", .{
@typeName(@TypeOf(optional_value)),
optional_value,
});
optional_value = "hi";
assert(optional_value != null);
print("\noptional 2\ntype: {}\nvalue: {}\n", .{
@typeName(@TypeOf(optional_value)),
optional_value,
});
// error union
var number_or_error: anyerror!i32 = error.ArgNotFound;
print("\nerror union 1\ntype: {}\nvalue: {}\n", .{
@typeName(@TypeOf(number_or_error)),
number_or_error,
});
number_or_error = 1234;
print("\nerror union 2\ntype: {}\nvalue: {}\n", .{
@typeName(@TypeOf(number_or_error)),
number_or_error,
});
}
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