The best replacement for structures is classes.

The best alternatives to structures are rated as following:
★★★★★  classes
★★★★★  analogous structures
★★★  physical structures
★★  concrete structures
★★  arrays
★★  unions
★★  organelles
★  buildings
★  homologous structures
★  isomers
★  vestigial structures
★  classes vb.net
★  analogous
★  vestigial
★  text features
★  organs
  steel structures
  matrix structures
  flat structures
  classes c++
  hierarchical structures
  sculptures
  constitutional isomers
  lewis structures
  parallelism

Your alternative for structures is not listed? Suggest!
Speaking about structures, one probably shouldn't forget about arrays in c.

Other search terms related to structures and their ratings are:
★★★★★ arrays in c
★★★★★ pointers
★★★★ pointers in c
★★ c++
You have in mind a companion for structures and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of structures in all years. Click on graph for more.
structures
classes
analogous structures