6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-14 11:32:34 +00:00
Code Issues Projects Releases Wiki Activity

Avoid undefined behavior in signed integer negation. Patch by Ahmed Charles.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141905 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman 2011-10-13 22:49:56 +00:00
parent 8e4d0429de
commit 90406e18b8
1 changed files with 2 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
lib/Support/raw_ostream.cpp
View File

@ -121,7 +121,8 @@ raw_ostream &raw_ostream::operator<<(unsigned long N) {
raw_ostream &raw_ostream::operator<<(long N) {
if (N < 0) {
*this << '-';
N = -N;
// Avoid undefined behavior on LONG_MIN with a cast.
N = -(unsigned long)N;
}
return this->operator<<(static_cast<unsigned long>(N));