admin/mruby-mruby
1
0
Fork 0
mirror of https://github.com/mruby/mruby synced 2026-06-08 16:11:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

codegen.c: -9223372036854775808 % -1 overflows 64 bit integer.

Browse Source
This commit is contained in:
Yukihiro "Matz" Matsumoto
2021-08-06 10:35:06 +09:00
parent 7ecc16f97a
commit 37dbb91b96
1 changed files with 9 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mrbgems/mruby-compiler/core/codegen.c
+9 -4
View File
@@ -824,11 +824,16 @@ gen_binop(codegen_scope *s, mrb_sym op, uint16_t dst)
if (!mrb_num_shift(s->mrb, n0, -n, &n)) return FALSE;
}
else if (op == MRB_OPSYM_2(s->mrb, mod) && n != 0) {
mrb_int n1 = n0 % n;
if ((n0 < 0) != (n < 0) && n1 != 0) {
n1 += n;
if (n0 == MRB_INT_MIN && n == -1) {
n = 0;
}
else {
mrb_int n1 = n0 % n;
if ((n0 < 0) != (n < 0) && n1 != 0) {
n1 += n;
}
n = n1;
}
n = n1;
}
else if (op == MRB_OPSYM_2(s->mrb, and)) {
n = n0 & n;