| 1 | const std = @import("std"); |
| 2 | |
| 3 | extern fn add_C(x: i32) i32; |
| 4 | extern fn add_C_zig(x: i32) i32; |
| 5 | extern threadlocal var C_k: c_int; |
| 6 | |
| 7 | export var zig_k: c_int = 1; |
| 8 | export fn add_zig(x: i32) i32 { |
| 9 | return x + zig_k + C_k; |
| 10 | } |
| 11 | export fn add_may_panic(x: i32) i32 { |
| 12 | if (x < 0) @panic("negative int"); |
| 13 | return x + zig_k; |
| 14 | } |
| 15 | |
| 16 | pub fn main() anyerror!void { |
| 17 | var x: i32 = 0; |
| 18 | x = add_zig(x); |
| 19 | x = add_C(x); |
| 20 | x = add_C_zig(x); |
| 21 | |
| 22 | C_k = 200; |
| 23 | zig_k = 2; |
| 24 | x = add_zig(x); |
| 25 | x = add_C(x); |
| 26 | x = add_C_zig(x); |
| 27 | |
| 28 | const u = @as(u32, @intCast(x)); |
| 29 | try std.testing.expect(u / 100 == u % 100); |
| 30 | } |