Check a value where its used

1 files changed, 4 insertions, 3 deletions

diff --git a/Alc/mixvoice.cpp b/Alc/mixvoice.cpp
index 9f32db0e..3823963b 100644
--- a/Alc/mixvoice.cpp
+++ b/Alc/mixvoice.cpp
@@ -335,6 +335,8 @@ ALsizei LoadBufferStatic(ALbufferlistitem *BufferListItem, ALbufferlistitem *&Bu
             );
             return CompLen;
         };
+        /* It's impossible to have a buffer list item with no entries. */
+        ASSUME(BufferListItem->num_buffers > 0);
         auto buffers_end = BufferListItem->buffers + BufferListItem->num_buffers;
         FilledAmt += std::accumulate(BufferListItem->buffers, buffers_end, ALsizei{0},
             load_buffer);
@@ -359,6 +361,7 @@ ALsizei LoadBufferStatic(ALbufferlistitem *BufferListItem, ALbufferlistitem *&Bu
             );
             return CompLen;
         };
+        ASSUME(BufferListItem->num_buffers > 0);
         auto buffers_end = BufferListItem->buffers + BufferListItem->num_buffers;
         FilledAmt += std::accumulate(BufferListItem->buffers, buffers_end, ALsizei{0},
             load_buffer);
@@ -423,6 +426,7 @@ ALsizei LoadBufferQueue(ALbufferlistitem *BufferListItem, ALbufferlistitem *Buff
                         buffer->mFmtType, DataSize);
             return CompLen;
         };
+        ASSUME(BufferListItem->num_buffers > 0);
         auto buffers_end = BufferListItem->buffers + BufferListItem->num_buffers;
         FilledAmt += std::accumulate(BufferListItem->buffers, buffers_end, ALsizei{0},
             load_buffer);
@@ -545,9 +549,6 @@ void MixVoice(ALvoice *voice, ALvoice::State vstate, const ALuint SourceID, ALCc
                 DstBufferSize &= ~3;
         }
 
-        /* It's impossible to have a buffer list item with no entries. */
-        assert(!BufferListItem || BufferListItem->num_buffers > 0);
-
         for(ALsizei chan{0};chan < NumChannels;chan++)
         {
             auto &SrcData = Device->SourceData;