How do I avoid code bloat with templates?

When using templates in C++, it’s easy to run into the problem of code bloat, where the generated code becomes unnecessarily large due to many instantiations of template classes or functions. To avoid code bloat with templates, consider the following strategies:

  • Use Template Specialization: This allows you to provide specific implementations for certain types, reducing unnecessary generic code.
  • Limit Template Parameters: Only use the necessary number of parameters in your templates to minimize the combinations generated by the compiler.
  • Use Non-Template Functions: Sometimes, not everything needs to be a template. Use regular functions where appropriate.
  • Consider Using `inline` Functions: These can help with optimization, reducing the number of generated code instances.
  • Precompile or Preinstantiate Templates: You can explicitly instantiate templates in a `.cpp` file to control their generation.

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