• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 276
  • Last Modified:

How can you tell when a multimap insertion fails due to Out Of Memory

Quite simply, how can you tell when a multimap insertion fails due to running out of memory?  I expected that this would be easily found on Google but have had no luck.  My two guesses would be that it would return end() or that it would throw an exception but I haven't managed to find anything definitive.
1 Solution
Nope it will definitely not return end() because of an out of memory condition. I'm saying this because thats not a general design strategy in STL. The world is divided wrt whether new operator would throw std::bad_alloc when it fails to allocate memory or not. STL variant that favor exceptions - possibly this behavior is configurable - you can expect a std::bad_alloc exception. For others, I'm not sure - but i think it will just crash.

For example, VisualStudio has the define


If you set this to 0 it will not throw std::bad_alloc.
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Free Tool: Subnet Calculator

The subnet calculator helps you design networks by taking an IP address and network mask and returning information such as network, broadcast address, and host range.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now