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authorDavid Robillard <d@drobilla.net>2018-08-19 13:48:32 +0200
committerDavid Robillard <d@drobilla.net>2018-09-29 14:48:41 +0200
commitbc2836d41e4de1899e5aa649db849befc9dfa109 (patch)
tree66f392526befdbebfff8db9c598eb15457b93a6b /chilbert/FixBitVec.hpp
parent208bd909338a197f2752c7d5336de7d51b8a405b (diff)
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Fix undefined behaviour
Diffstat (limited to 'chilbert/FixBitVec.hpp')
-rw-r--r--chilbert/FixBitVec.hpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/chilbert/FixBitVec.hpp b/chilbert/FixBitVec.hpp
index da26d12..001e4c2 100644
--- a/chilbert/FixBitVec.hpp
+++ b/chilbert/FixBitVec.hpp
@@ -218,7 +218,7 @@ public:
/// Right-rotate by `bits` positions
CFixBitVec& rotr(const size_t bits)
{
- if (bits) {
+ if (bits > 0 && bits < size()) {
assert(bits <= bits_per_rack);
m_rack &= FBVN1S(size());
m_rack = (m_rack >> bits) | (m_rack << (size() - bits));
@@ -230,7 +230,7 @@ public:
/// Left-rotate by `bits` positions
CFixBitVec& rotl(const size_t bits)
{
- if (bits > 0) {
+ if (bits > 0 && bits < size()) {
assert(bits <= bits_per_rack);
m_rack &= FBVN1S(size());
m_rack = (m_rack << bits) | (m_rack >> (size() - bits));