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patch 8.2.4255: theoretical computation overflow

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Problem:    Theoretical computation overflow.
Solution:   Perform multiplication in a wider type. (closes #9657)
This commit is contained in:
=?UTF-8?q?Dundar=20G=C3=B6c?=
2022-01-29 15:19:23 +00:00
committed by Bram Moolenaar
parent f12b7815f6
commit d5cec1f1f0
11 changed files with 28 additions and 23 deletions
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12
src/hardcopy.c
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@@ -2769,9 +2769,9 @@ mch_print_begin(prt_settings_T *psettings)
// derive the bbox from that point. We have the expected cpl chars
// across the media and lpp lines down the media.
bbox[1] = (int)(top - (psettings->lines_per_page + prt_header_height())
* prt_line_height);
bbox[2] = (int)(left + psettings->chars_per_line * prt_char_width
+ 0.5);
* (double)prt_line_height);
bbox[2] = (int)(left + psettings->chars_per_line
* (double)prt_char_width + 0.5);
bbox[3] = (int)(top + 0.5);
}
else
@@ -2782,8 +2782,8 @@ mch_print_begin(prt_settings_T *psettings)
bbox[1] = (int)bottom;
bbox[2] = (int)(left + ((psettings->lines_per_page
+ prt_header_height()) * prt_line_height) + 0.5);
bbox[3] = (int)(bottom + psettings->chars_per_line * prt_char_width
+ 0.5);
bbox[3] = (int)(bottom + psettings->chars_per_line
* (double)prt_char_width + 0.5);
}
prt_dsc_ints("BoundingBox", 4, bbox);
// The media width and height does not change with landscape printing!
@@ -2797,7 +2797,7 @@ mch_print_begin(prt_settings_T *psettings)
if (prt_out_mbyte)
{
prt_dsc_font_resource((prt_use_courier ? NULL
: "DocumentNeededResources"), &prt_ps_mb_font);
: "DocumentNeededResources"), &prt_ps_mb_font);
if (!prt_custom_cmap)
prt_dsc_resources(NULL, "cmap", prt_cmap);
}