modti3_test.zig (1243B) - Raw
1 const __modti3 = @import("modti3.zig").__modti3; 2 const testing = @import("std").testing; 3 4 fn test__modti3(a: i128, b: i128, expected: i128) !void { 5 const x = __modti3(a, b); 6 try testing.expect(x == expected); 7 } 8 9 test "modti3" { 10 try test__modti3(0, 1, 0); 11 try test__modti3(0, -1, 0); 12 try test__modti3(5, 3, 2); 13 try test__modti3(5, -3, 2); 14 try test__modti3(-5, 3, -2); 15 try test__modti3(-5, -3, -2); 16 17 try test__modti3(0x8000000000000000, 1, 0x0); 18 try test__modti3(0x8000000000000000, -1, 0x0); 19 try test__modti3(0x8000000000000000, 2, 0x0); 20 try test__modti3(0x8000000000000000, -2, 0x0); 21 try test__modti3(0x8000000000000000, 3, 2); 22 try test__modti3(0x8000000000000000, -3, 2); 23 24 try test__modti3(make_ti(0x8000000000000000, 0), 1, 0x0); 25 try test__modti3(make_ti(0x8000000000000000, 0), -1, 0x0); 26 try test__modti3(make_ti(0x8000000000000000, 0), 2, 0x0); 27 try test__modti3(make_ti(0x8000000000000000, 0), -2, 0x0); 28 try test__modti3(make_ti(0x8000000000000000, 0), 3, -2); 29 try test__modti3(make_ti(0x8000000000000000, 0), -3, -2); 30 } 31 32 fn make_ti(high: u64, low: u64) i128 { 33 var result: u128 = high; 34 result <<= 64; 35 result |= low; 36 return @bitCast(result); 37 }