Data update

Task/Integer-overflow/Crystal/integer-overflow.cr

@@ -0,0 +1,38 @@
+macro try (expr)
+  printf "%-*s # => ", padding, {{expr.stringify}}
+  begin
+    puts {{expr}}
+  rescue ex
+    puts "Exception: #{ex.message}"
+  end
+end
+
+padding = 25
+puts "Result does not fit into a 32-bit signed integer:"
+try -(-2147483647-1)
+try 2000000000 + 2000000000
+try -2147483647 - 2147483647
+try 46341 * 46341
+try (-2147483647-1) // -1
+
+padding = 52
+puts "\nResult does not fit into a 64-bit signed integer:"
+try -(-9223372036854775807 - 1)
+try 5000000000000000000 + 5000000000000000000
+try -9223372036854775807 - 9223372036854775807
+try 3037000500 * 3037000500
+try (-9223372036854775807 - 1) // -1
+
+padding = 32
+puts "\nResult does not fit into a 32-bit unsigned integer:"
+try -4294967295.to_u32
+try 3000000000_u32 + 3000000000_u32
+try 2147483647_u32 - 4294967295_u32
+try 65537_u32 * 65537_u32
+
+padding = 52
+puts "\nResult that does not fit into a 64-bit unsigned integer:"
+try -18446744073709551615_i128.to_u64
+try 10000000000000000000_u64 + 10000000000000000000_u64
+try 9223372036854775807_u64 - 18446744073709551615_u64
+try 4294967296_u64 * 4294967296_64