define a macro for error stream

jlmelville · jlmelville · commit 5b3d81bed463 · 2023-09-17T16:05:56.000-07:00
diff --git a/hnswlib/hnswlib.h b/hnswlib/hnswlib.h
@@ -1,4 +1,11 @@
 #pragma once
+
+#ifndef HNSWLIB_ERR_OVERRIDE
+  #define HNSWERR std::cerr
+#else
+  #define HNSWERR HNSWLIB_ERR_OVERRIDE
+#endif
+
 #ifndef NO_MANUAL_VECTORIZATION
 #if (defined(__SSE__) || _M_IX86_FP > 0 || defined(_M_AMD64) || defined(_M_X64))
 #define USE_SSE
