gbdev/rgbds
1
0 Fork 0
mirror of https://github.com/gbdev/rgbds.git synced 2026-10-06 12:15:39 +00:00
Code Issues Packages Projects Releases Wiki Activity

Correct assumption to avoid UB with 1 << 31

Browse Source
This commit is contained in:
Rangi committed 2026-07-09 21:36:34 -04:00
1 parent 39e7e064c9
commit b8011947a8
2 files changed
+2 -2
Download Patch File Download Diff File Expand all files Collapse all files

No files matched your search

src/asm/rpn.cpp
+1 -1
View File
@@ -486,7 +486,7 @@ void Expression::checkNBit(uint8_t n) const {
bool checkNBit(int32_t v, uint8_t n, char const *name) {
assume(n != 0); // That doesn't make sense
assume(n < CHAR_BIT * sizeof(int)); // Otherwise `1 << n` is UB
assume(n < CHAR_BIT * sizeof(int) - 1); // Otherwise `1 << n` is UB
if (v < -(1 << n) || v >= 1 << n) {
warning(
src/link/patch.cpp
+1 -1
View File
@@ -522,7 +522,7 @@ void patch_CheckAssertions() {
static void checkPatchSize(Patch const &patch, int32_t v, uint8_t n) {
assume(n != 0); // That doesn't make sense
assume(n < CHAR_BIT * sizeof(int)); // Otherwise `1 << n` is UB
assume(n < CHAR_BIT * sizeof(int) - 1); // Otherwise `1 << n` is UB
if (v < -(1 << n) || v >= 1 << n) {
diagnosticAt(