How to replicate vector in c?

Question

In the days before c++ and vector/lists, how did they expand the size of arrays when they needed to store more data?

Answer 1

You can use "Gena" library. It closely resembles stl::vector in pure C89.

From the README, it features:

• Access vector elements just like plain C arrays: vec[k][j];
• Have multi-dimentional arrays;
• Copy vectors;
• Instantiate necessary vector types once in a separate module, instead of doing this every time you needed a vector;
• You can choose how to pass values into a vector and how to return them from it: by value or by pointer.

You can check it out here:

https://github.com/cher-nov/Gena