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vim-patch:8.1.1897: may free memory twice when out of memory (#10827)

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Problem:    May free memory twice when out of memory.
Solution:   Check that backslash_halve_save() returns a different pointer.
            (Dominique Pelle, closes vim/vim#4847)
f1552d07d7
This commit is contained in:
Jan Edmund Lazo
2019-08-22 00:49:33 -04:00
committed by Daniel Hahler
parent bb50eadc84
commit ed28668392
4 changed files with 21 additions and 16 deletions
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3
src/nvim/charset.c
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@@ -1900,7 +1900,8 @@ void backslash_halve(char_u *p)
/// @param p
///
/// @return String with the number of backslashes halved.
char_u* backslash_halve_save(char_u *p)
char_u *backslash_halve_save(const char_u *p)
FUNC_ATTR_NONNULL_ALL FUNC_ATTR_NONNULL_RET
{
// TODO(philix): simplify and improve backslash_halve_save algorithm
char_u *res = vim_strsave(p);