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Did shift of 32. Not allowed

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ceriel 1991-10-02 13:41:33 +00:00
parent 2b7aae3b44
commit 24a353f3e1
2 changed files with 4 additions and 2 deletions
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3
lang/cem/cemcom.ansi/struct.c
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@ -420,7 +420,8 @@ add_field(szp, fd, fdtpp, idf, stp)
Sign extension could occur on some machines when shifting
the mask to the left.
*/
fd->fd_mask = (1 << fd->fd_width) - 1;
if (fd->fd_width >= 8*sizeof(arith)) fd->fd_mask = -1;
else fd->fd_mask = (1L << fd->fd_width) - 1;
if (options['r']) /* adjust the field at the right */
fd->fd_shift = bits_declared - fd->fd_width;

3
lang/cem/cemcom/struct.c
View file

@ -456,7 +456,8 @@ add_field(szp, fd, fdtpp, idf, stp)
Sign extension could occur on some machines when shifting
the mask to the left.
*/
fd->fd_mask = (1 << fd->fd_width) - 1;
if (fd->fd_width >= 8*sizeof(arith)) fd->fd_mask = -1;
else fd->fd_mask = (1L << fd->fd_width) - 1;
if (options['r']) /* adjust the field at the right */
fd->fd_shift = bits_declared - fd->fd_width;