Bugfixes, cleanup

Author: michaelbautin

CMakeLists.txt

@@ -5,7 +5,6 @@ project(hnswlib
 
 include(GNUInstallDirs)
 include(CheckCXXCompilerFlag)
-include(FetchContent)
 
 # These example/test targets catch exceptions, so exceptions should always be
 # enabled building these files even if they are disabled in other targets.

hnswlib/bruteforce.h

@@ -74,7 +74,7 @@ class BruteforceSearch : public AlgorithmInterface<dist_t> {
                 idx = search->second;
             } else {
                 if (cur_element_count >= maxelements_) {
-                    HNSWLIB_THROW_RUNTIME_ERROR("The number of elements exceeds the specified limit");
+                    return Status("The number of elements exceeds the specified limit");
                 }
                 idx = cur_element_count;
                 dict_external_to_internal[label] = idx;

hnswlib/hnswlib.h

@@ -316,7 +316,7 @@ class AlgorithmInterface {
 
         // Here searchKnn returns the result in the order of further first.
         auto status_or_result = searchKnnNoExceptions(query_data, k, isIdAllowed);
-        if (status_or_result.ok()) {
+        if (!status_or_result.ok()) {
             return status_or_result.status();
         }
         auto ret = std::move(status_or_result.value());