Function joinZ [src]

Naively combines a series of slices with a separator and null terminator. Allocates memory for the result, which must be freed by the caller.

Prototype

pub fn joinZ(allocator: Allocator, separator: []const u8, slices: []const []const u8) Allocator.Error![:0]u8

Parameters

allocator: Allocatorseparator: []const u8slices: []const []const u8

Example

 test joinZ {
    {
        const str = try joinZ(testing.allocator, ",", &[_][]const u8{});
        defer testing.allocator.free(str);
        try testing.expect(eql(u8, str, ""));
        try testing.expectEqual(str[str.len], 0);
    }
    {
        const str = try joinZ(testing.allocator, ",", &[_][]const u8{ "a", "b", "c" });
        defer testing.allocator.free(str);
        try testing.expect(eql(u8, str, "a,b,c"));
        try testing.expectEqual(str[str.len], 0);
    }
    {
        const str = try joinZ(testing.allocator, ",", &[_][]const u8{"a"});
        defer testing.allocator.free(str);
        try testing.expect(eql(u8, str, "a"));
        try testing.expectEqual(str[str.len], 0);
    }
    {
        const str = try joinZ(testing.allocator, ",", &[_][]const u8{ "a", "", "b", "", "c" });
        defer testing.allocator.free(str);
        try testing.expect(eql(u8, str, "a,,b,,c"));
        try testing.expectEqual(str[str.len], 0);
    }
}

Source

  pub fn joinZ(allocator: Allocator, separator: []const u8, slices: []const []const u8) Allocator.Error![:0]u8 {
    const out = try joinMaybeZ(allocator, separator, slices, true);
    return out[0 .. out.len - 1 :0];
}  