1const std = @import("std");
 2const common = @import("common.zig");
 3
 4comptime {
 5    @export(&bzero, .{ .name = "bzero", .linkage = common.linkage, .visibility = common.visibility });
 6}
 7
 8fn bzero(s: *anyopaque, n: usize) callconv(.c) void {
 9    const s_cast: [*]u8 = @ptrCast(s);
10    @memset(s_cast[0..n], 0);
11}
12
13test bzero {
14    var array: [10]u8 = [_]u8{ '1', '2', '3', '4', '5', '6', '7', '8', '9', '0' };
15    var a = std.mem.zeroes([array.len]u8);
16    a[9] = '0';
17    bzero(&array[0], 9);
18    try std.testing.expect(std.mem.eql(u8, &array, &a));
19}