Runtime Checks for:

• subscripts out of bounds
• null pointers
• division by zero
• report source routine and line number where failure occurs

Compiler Options:

• SGI Fortran, C,C++ : - DEBUG:subscript_check:verbose_runtime:div_check
• IBM Fortran,C,C+: =qcheck=nullptr,bounds,divzero
• Solaris Fortran for runtime checking of out of bounds array references: -C

Disadvantages of GNU Compilers vs Native Compilers

• GNU has some platform-specific optimization but not as complete
• GNU often lacking the extra features like run-time checking

Advantage of GNU Compilers Over Native Compilers

• Predictability and Stability on Various Hardware Platforms