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patch 8.2.5004: right shift on negative number does not work as documented

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Problem:    Right shift on negative number does not work as documented.
Solution:   Use a uvarnumber_T type cast.
This commit is contained in:
Bram Moolenaar
2022-05-22 20:16:32 +01:00
parent a061f34191
commit 338bf58eba
7 changed files with 26 additions and 19 deletions
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6
src/eval.c
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@@ -3091,12 +3091,8 @@ eval5(char_u **arg, typval_T *rettv, evalarg_T *evalarg)
rettv->vval.v_number =
rettv->vval.v_number << var2.vval.v_number;
else
{
rettv->vval.v_number =
rettv->vval.v_number >> var2.vval.v_number;
// clear the topmost sign bit
rettv->vval.v_number &= ~((uvarnumber_T)1 << MAX_LSHIFT_BITS);
}
(uvarnumber_T)rettv->vval.v_number >> var2.vval.v_number;
}
clear_tv(&var2);