HP 3000 Manuals HP 3000 Manuals
Identifying Nonstandard Features The STANDARD_LEVEL compiler directive helps identify nonstandard features. This directive has three possible options: ANSI, HP, and SYSTEM. The STANDARD_LEVEL ANSI option has the same effect as the ANSI ON compiler directive and flags all non-ANSI features with warning messages. The STANDARD_LEVEL HP option issues warning messages for features that are not part of the FORTRAN 77 standard and gives a quick assessment of the non-HP FORTRAN 77 or system-specific features in your programs. The default STANDARD_LEVEL SYSTEM option does not issue warning messages for nonstandard or system-specific features. Refer to the HP FORTRAN 77/iX Reference for more details on the syntax and semantics of the ANSI and STANDARD_LEVEL compiler directives.