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#![warn(clippy::manual_swap)]
#![no_main]
fn swap1() {
let mut v = [3, 2, 1, 0];
let index = v[0];
//~^ manual_swap
v[0] = v[index];
v[index] = index;
}
fn swap2() {
let mut v = [3, 2, 1, 0];
let tmp = v[0];
//~^ manual_swap
v[0] = v[1];
v[1] = tmp;
// check not found in this scope.
let _ = tmp;
}
fn swap3() {
let mut v = [3, 2];
let i1 = 0;
let i2 = 1;
let temp = v[i1];
//~^ manual_swap
v[i1] = v[i2];
v[i2] = temp;
}
fn swap4() {
let mut v = [3, 2, 1];
let i1 = 0;
let i2 = 1;
let temp = v[i1];
//~^ manual_swap
v[i1] = v[i2 + 1];
v[i2 + 1] = temp;
}
fn swap5() {
let mut v = [0, 1, 2, 3];
let i1 = 0;
let i2 = 1;
let temp = v[i1];
//~^ manual_swap
v[i1] = v[i2 + 1];
v[i2 + 1] = temp;
}
fn swap6() {
let mut v = [0, 1, 2, 3];
let index = v[0];
//~^ manual_swap
v[0] = v[index + 1];
v[index + 1] = index;
}
fn swap7() {
let mut v = [0, 1, 2, 3];
let i1 = 0;
let i2 = 6;
let tmp = v[i1 * 3];
//~^ manual_swap
v[i1 * 3] = v[i2 / 2];
v[i2 / 2] = tmp;
}
fn swap8() {
let mut v = [1, 2, 3, 4];
let i1 = 1;
let i2 = 1;
let tmp = v[i1 + i2];
//~^ manual_swap
v[i1 + i2] = v[i2];
v[i2] = tmp;
}
fn issue_14931() {
let mut v = [1, 2, 3, 4];
let mut i1 = 0;
for i2 in 0..4 {
let tmp = v[i1];
//~^ manual_swap
v[i1] = v[i2];
v[i2] = tmp;
i1 += 2;
}
}
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