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test_wraparound_semantics.zig (358B) - Raw

      1 const std = @import("std");
      2 const expect = std.testing.expect;
      3 const minInt = std.math.minInt;
      4 const maxInt = std.math.maxInt;
      5 
      6 test "wraparound addition and subtraction" {
      7     const x: i32 = maxInt(i32);
      8     const min_val = x +% 1;
      9     try expect(min_val == minInt(i32));
     10     const max_val = min_val -% 1;
     11     try expect(max_val == maxInt(i32));
     12 }
     13 
     14 // test