tests/ui/arithmetic.rs

   1 #![feature(plugin)]
   2 #![plugin(clippy)]
   3
   4 #![deny(integer_arithmetic, float_arithmetic)]
   5 #![allow(unused, shadow_reuse, shadow_unrelated, no_effect, unnecessary_operation)]
   6 fn main() {
   7     let i = 1i32;
   8     1 + i; //~ERROR integer arithmetic detected
   9     i * 2; //~ERROR integer arithmetic detected
  10     1 % //~ERROR integer arithmetic detected
  11     i / 2; // no error, this is part of the expression in the preceding line
  12     i - 2 + 2 - i; //~ERROR integer arithmetic detected
  13     -i; //~ERROR integer arithmetic detected
  14
  15     i & 1; // no wrapping
  16     i | 1;
  17     i ^ 1;
  18     i >> 1;
  19     i << 1;
  20
  21     let f = 1.0f32;
  22
  23     f * 2.0; //~ERROR floating-point arithmetic detected
  24
  25     1.0 + f; //~ERROR floating-point arithmetic detected
  26     f * 2.0; //~ERROR floating-point arithmetic detected
  27     f / 2.0; //~ERROR floating-point arithmetic detected
  28     f - 2.0 * 4.2; //~ERROR floating-point arithmetic detected
  29     -f; //~ERROR floating-point arithmetic detected
  30 }