Just In: Understanding the "Borrowed Value Does Not Live Long Enough" Error

What it means

When compiling a Rust program, you may encounter the error "borrowed value does not live long enough". This error indicates that a reference to a value is being used beyond its valid lifetime.

In Rust, values have a specific lifetime, which is the range of code over which they are valid to use. When you borrow a value (create a reference to it), the lifetime of the reference is limited to the lifetime of the original value.

The Solution

To resolve this error, ensure that the borrowed value remains valid for the entire duration that it is being used. This can be done by:

• Increasing the lifetime of the original value
• Creating a copy of the borrowed value within the appropriate lifetime