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authorPaul Eggert2020-04-05 01:17:32 -0700
committerPaul Eggert2020-04-05 01:24:36 -0700
commitbec5cfee7660f6e283efbd30a693a6f8e9ea46b8 (patch)
treeb6b872dfb83579336e848a62f720b629426c0ac0 /src/search.c
parent9b8dacdb264412b919782920da916e306102262a (diff)
downloademacs-bec5cfee7660f6e283efbd30a693a6f8e9ea46b8.tar.gz
emacs-bec5cfee7660f6e283efbd30a693a6f8e9ea46b8.zip
Improve integer range checking
* src/bignum.c (check_integer_range, check_uinteger_max) (check_int_nonnegative): New functions. * src/frame.c (check_frame_pixels): New function. (Fset_frame_height, Fset_frame_width, Fset_frame_size): Use it. * src/lisp.h (CHECK_RANGED_INTEGER, CHECK_TYPE_RANGED_INTEGER): Remove these macros. Unless otherwise specified, all callers replaced by calls to check_integer_range, check_uinteger_range, check_int_nonnegative. * src/frame.c (gui_set_right_divider_width) (gui_set_bottom_divider_width): * src/nsfns.m (ns_set_internal_border_width): * src/xfns.c (x_set_internal_border_width): Using check_int_nonnegative means these functions no longer incorrectly reject negative bignums; they treat them as 0, just like negative fixnums.
Diffstat (limited to 'src/search.c')
-rw-r--r--src/search.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/src/search.c b/src/search.c
index 7389fbef0ee..08b57c5faf3 100644
--- a/src/search.c
+++ b/src/search.c
@@ -2392,14 +2392,7 @@ since only regular expressions have distinguished subexpressions. */)
2392 if (num_regs <= 0) 2392 if (num_regs <= 0)
2393 error ("`replace-match' called before any match found"); 2393 error ("`replace-match' called before any match found");
2394 2394
2395 if (NILP (subexp)) 2395 sub = !NILP (subexp) ? check_integer_range (subexp, 0, num_regs - 1) : 0;
2396 sub = 0;
2397 else
2398 {
2399 CHECK_RANGED_INTEGER (subexp, 0, num_regs - 1);
2400 sub = XFIXNUM (subexp);
2401 }
2402
2403 ptrdiff_t sub_start = search_regs.start[sub]; 2396 ptrdiff_t sub_start = search_regs.start[sub];
2404 ptrdiff_t sub_end = search_regs.end[sub]; 2397 ptrdiff_t sub_end = search_regs.end[sub];
2405 eassert (sub_start <= sub_end); 2398 eassert (sub_start <= sub_end);