# Language Options

This section contains descriptions for compiler options that pertain to language compatibility, conformity, etc.. They are listed in alphabetical order.

Parent topic: Compiler Options

- allow
  Determines whether the compiler allows certain behaviors.
- altparam
  Allows alternate syntax (without parentheses) for PARAMETER statements.
- assume
  Tells the compiler to make certain assumptions.
- ccdefault
  Specifies the type of carriage control used when a file is displayed at a terminal screen.
- check
  Checks for certain conditions at run time.
- extend-source
  Specifies the length of the statement field in a fixed-form source file.
- fixed
  Specifies source files are in fixed format.
- free
  Specifies source files are in free format.
- iface
  Specifies the default calling convention and argument-passing convention for an application.
- names
  Specifies how source code identifiers and external names are interpreted.
- pad-source, Qpad-source
  Specifies padding for fixed-form source records.
- stand
  Tells the compiler to issue compile-time messages for nonstandard language elements.
- standard-realloc-lhs
  Determines whether the compiler uses the current Fortran Standard rules or the old Fortran 2003 rules when interpreting assignment statements.
- standard-semantics
  Determines whether the current Fortran Standard behavior of the compiler is fully implemented.
- syntax-only
  Tells the compiler to check only for correct syntax.
- wrap-margin
  Provides a way to disable the right margin wrapping that occurs in Fortran list-directed output.