mirror of
https://github.com/ziglang/zig.git
synced 2024-11-27 15:42:49 +00:00
f26dda2117
Most of this migration was performed automatically with `zig fmt`. There were a few exceptions which I had to manually fix: * `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten * `@truncate`'s fixup is incorrect for vectors * Test cases are not formatted, and their error locations change
84 lines
2.7 KiB
Zig
84 lines
2.7 KiB
Zig
const std = @import("std");
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const builtin = @import("builtin");
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const expect = std.testing.expect;
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test "memcpy and memset intrinsics" {
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest; // TODO
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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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try testMemcpyMemset();
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try comptime testMemcpyMemset();
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}
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fn testMemcpyMemset() !void {
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var foo: [20]u8 = undefined;
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var bar: [20]u8 = undefined;
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@memset(&foo, 'A');
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@memcpy(&bar, &foo);
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try expect(bar[0] == 'A');
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try expect(bar[11] == 'A');
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try expect(bar[19] == 'A');
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}
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test "@memcpy with both operands single-ptr-to-array, one is null-terminated" {
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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try testMemcpyBothSinglePtrArrayOneIsNullTerminated();
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try comptime testMemcpyBothSinglePtrArrayOneIsNullTerminated();
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}
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fn testMemcpyBothSinglePtrArrayOneIsNullTerminated() !void {
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var buf: [100]u8 = undefined;
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const suffix = "hello";
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@memcpy(buf[buf.len - suffix.len ..], suffix);
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try expect(buf[95] == 'h');
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try expect(buf[96] == 'e');
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try expect(buf[97] == 'l');
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try expect(buf[98] == 'l');
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try expect(buf[99] == 'o');
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}
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test "@memcpy dest many pointer" {
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if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest;
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if (builtin.zig_backend == .stage2_spirv64) return error.SkipZigTest;
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try testMemcpyDestManyPtr();
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try comptime testMemcpyDestManyPtr();
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}
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fn testMemcpyDestManyPtr() !void {
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var str = "hello".*;
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var buf: [5]u8 = undefined;
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var len: usize = 5;
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@memcpy(@as([*]u8, @ptrCast(&buf)), @as([*]const u8, @ptrCast(&str))[0..len]);
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try expect(buf[0] == 'h');
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try expect(buf[1] == 'e');
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try expect(buf[2] == 'l');
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try expect(buf[3] == 'l');
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try expect(buf[4] == 'o');
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}
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comptime {
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if (builtin.zig_backend != .stage2_spirv64) {
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const S = struct {
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buffer: [8]u8 = undefined,
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fn set(self: *@This(), items: []const u8) void {
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@memcpy(self.buffer[0..items.len], items);
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}
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};
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var s = S{};
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s.set("hello");
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if (!std.mem.eql(u8, s.buffer[0..5], "hello")) @compileError("bad");
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}
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}
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