diff options
| -rw-r--r-- | subx/001help.cc | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/subx/001help.cc b/subx/001help.cc index 65e291c5..efb3ac46 100644 --- a/subx/001help.cc +++ b/subx/001help.cc @@ -226,12 +226,18 @@ int feenableexcept(unsigned int excepts) { // from http://stackoverflow.com/questions/152643/idiomatic-c-for-reading-from-a-const-map template<typename T> typename T::mapped_type& get(T& map, typename T::key_type const& key) { typename T::iterator iter(map.find(key)); - assert(iter != map.end()); + if (iter == map.end()) { + cerr << "get couldn't find key '" << key << "'\n"; + assert(iter != map.end()); + } return iter->second; } template<typename T> typename T::mapped_type const& get(const T& map, typename T::key_type const& key) { typename T::const_iterator iter(map.find(key)); - assert(iter != map.end()); + if (iter == map.end()) { + cerr << "get couldn't find key '" << key << "'\n"; + assert(iter != map.end()); + } return iter->second; } template<typename T> typename T::mapped_type const& put(T& map, typename T::key_type const& key, typename T::mapped_type const& value) { |