zig/test/cases/const_slice_child.zig
Jimmi Holst Christensen 378d3e4403
Solve the return type ambiguity (#1628)
Changed container and initializer syntax
* <container> { ... } -> <container> . { ... }
* <exrp> { ... } -> <expr> . { ...}
2018-10-15 09:51:15 -04:00

46 lines
1.0 KiB
Zig

const debug = @import("std").debug;
const assert = debug.assert;
var argv: [*]const [*]const u8 = undefined;
test "const slice child" {
const strs = ([][*]const u8).{
c"one",
c"two",
c"three",
};
// TODO this should implicitly cast
argv = @ptrCast([*]const [*]const u8, &strs);
bar(strs.len);
}
fn foo(args: [][]const u8) void {
assert(args.len == 3);
assert(streql(args[0], "one"));
assert(streql(args[1], "two"));
assert(streql(args[2], "three"));
}
fn bar(argc: usize) void {
const args = debug.global_allocator.alloc([]const u8, argc) catch unreachable;
for (args) |_, i| {
const ptr = argv[i];
args[i] = ptr[0..strlen(ptr)];
}
foo(args);
}
fn strlen(ptr: [*]const u8) usize {
var count: usize = 0;
while (ptr[count] != 0) : (count += 1) {}
return count;
}
fn streql(a: []const u8, b: []const u8) bool {
if (a.len != b.len) return false;
for (a) |item, index| {
if (b[index] != item) return false;
}
return true;
}