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In do_palt(), mask out unused data bits.

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This avoids an infinite loop if one of them is inadvertently (or
advertently) set.  Why might one be set advertently?  Well, it would
allow us to replace our long lists of numbers with short strings.  For
instance, the U+0024 DOLLAR SIGN glyph is "NUTNEUN".  Sadly that would
make the program incompatible with non-ASCII systems and since I claim
ANSI C I should probably continue to support those.
This commit is contained in:
Ben Harris 2017-07-08 00:51:44 +01:00
parent ce68065faa
commit 7ba21188c8
1 changed files with 1 additions and 1 deletions
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bedstead.c
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@ -1491,7 +1491,7 @@ dopalt(struct glyph const *g)
* characters get an advance width of three pixels.
*/
for (i = 0; i < YSIZE; i++)
cols |= g->data[i];
cols |= g->data[i] & ((1 << XSIZE) - 1);
if (cols == 0)
dh = 3 - XSIZE;
else {