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patch 8.0.1227: undefined left shift in readfile()

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Problem:    Undefined left shift in readfile(). (Brian 'geeknik' Carpenter)
Solution:   Add cast to unsigned. (Dominique Pelle, closes #2253)
This commit is contained in:
Bram Moolenaar
2017-10-27 22:15:24 +02:00
parent 2a45d64d0a
commit dc1c981294
2 changed files with 8 additions and 6 deletions
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12
src/fileio.c
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@@ -1956,17 +1956,17 @@ retry:
{
if (fio_flags & FIO_ENDIAN_L)
{
u8c = (*--p << 24);
u8c += (*--p << 16);
u8c += (*--p << 8);
u8c = (unsigned)*--p << 24;
u8c += (unsigned)*--p << 16;
u8c += (unsigned)*--p << 8;
u8c += *--p;
}
else /* big endian */
{
u8c = *--p;
u8c += (*--p << 8);
u8c += (*--p << 16);
u8c += (*--p << 24);
u8c += (unsigned)*--p << 8;
u8c += (unsigned)*--p << 16;
u8c += (unsigned)*--p << 24;
}
}
else /* UTF-8 */