FastCheck takes a light-weight, pragmatic approach to error detection for C programs. Currently, the tool analyzes source-sink problems, where a program resource (e.g. heap block, file) produced at a source point (e.g. malloc, file open) is consumed at a sink point (e.g. free, file close), exactly once on each program path. The tool finds and reports:

  • resource leaks (e.g., memory leaks, files not closed)
  • multiple resource deallocations (double frees, files closed more than once)

Key features of FastCheck include:

  • efficient analysis using a sparse value-flow program representation;
  • concise, user-friendly error reports;
  • error classification into several categories with decreasing priorities (high, medium, and low).




Contributors to FastCheck are:


FastCheck uses some external tools. Notably,