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add back comment explaining the use of alloca()

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Paul Davis 2014-01-15 14:58:59 -05:00
parent 9aacefc170
commit e8202dded8
1 changed files with 2 additions and 0 deletions
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libs/ardour/vst_plugin.cc
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@ -535,6 +535,8 @@ VSTPlugin::connect_and_run (BufferSet& bufs,
BufferSet& silent_bufs = _session.get_silent_buffers(bufs_count);
BufferSet& scratch_bufs = _session.get_scratch_buffers(bufs_count);
// VC++ doesn't support this C99 extension. Use alloca instead of dynamic
// array (rather than std::vector which allocs on the heap)
float** ins = (float**)alloca(_plugin->numInputs*sizeof(float*));
float** outs = (float**)alloca(_plugin->numInputs*sizeof(float*));