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| author | Bram Moolenaar <Bram@vim.org> | 2022-05-22 20:16:32 +0100 |
|---|---|---|
| committer | Bram Moolenaar <Bram@vim.org> | 2022-05-22 20:16:32 +0100 |
| commit | 338bf58eba758585ffef3fdfdba7d48477aacb7c (patch) | |
| tree | 5ae6ce8b90f6aaaa06eb6d2192c9102c59fdd3b1 /src/testdir/test_expr.vim | |
| parent | a061f34191712df7dde7716705fe0ec074e9758e (diff) | |
patch 8.2.5004: right shift on negative number does not work as documentedv8.2.5004
Problem: Right shift on negative number does not work as documented.
Solution: Use a uvarnumber_T type cast.
Diffstat (limited to 'src/testdir/test_expr.vim')
| -rw-r--r-- | src/testdir/test_expr.vim | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/testdir/test_expr.vim b/src/testdir/test_expr.vim index 24daeb6655..ffac6df806 100644 --- a/src/testdir/test_expr.vim +++ b/src/testdir/test_expr.vim @@ -958,6 +958,8 @@ func Test_bitwise_shift() call assert_equal(0, 0 >> 4) call assert_equal(0, 999999 >> 100) call assert_equal(0, 999999 << 100) + call assert_equal(-1, -1 >> 0) + call assert_equal(-1, -1 << 0) VAR a = 8 VAR b = 2 call assert_equal(2, a >> b) @@ -976,6 +978,15 @@ func Test_bitwise_shift() for i in range(0, v:numbersize - 2) LET val = and(val, invert(1 << i)) endfor + #" -1 has all the bits set + call assert_equal(-2, -1 << 1) + call assert_equal(-4, -1 << 2) + call assert_equal(-8, -1 << 3) + if v:numbersize == 64 + call assert_equal(0x7fffffffffffffff, -1 >> 1) + call assert_equal(0x3fffffffffffffff, -1 >> 2) + call assert_equal(0x1fffffffffffffff, -1 >> 3) + endif call assert_equal(0, val) #" multiple operators call assert_equal(16, 1 << 2 << 2) |