Appendix A. Dialects and Extensions

The XGC Coral 66 compiler supports Official Definiton Coral 66 and the dialects offered by several other compilers. To select the dialect you may select each detail of that dialect, or you may select a profile that corresponds to the details.

For example, to select the SDL dialect, use the option -fsdl-profile.

The "Blandford Extensions" may be used to extend any dialect.

The following table gives the features that may be selected using a compile-time option.

Each compile time option should be prefixed with either -fpermit or -fno-permit as appropriate. For example, to prohibit binary numbers, use the option -fno-permit-binary-and-hex.

'begin'
   'integer' i := 'binary'(1010101010101010);
   'integer' j := 'octal'(125252);
   'integer' k := 'hex'(aaaa);
'end'

When we compiler the file b1.cor with the option -fno-permit-binary-and-hex, the keywords BINARY and HEX are flagged as illegal keywords.

$ m68k-coff-gcc -c --list b1.cor -fno-permit-binary-and-hex

XGC CORAL66 Compiler Version 1.7

Compiling: b1.cor (time stamp: 2001/10/27 18:23:35)

     1. 'begin'
     2.    'integer' i := 'binary'(1010101010101010);
                          |
        >>> error: Illegal keyword 'binary'

     3.    'integer' j := 'octal'(125252);
     4.    'integer' k := 'hex'(aaaa);
                          |
        >>> error: Illegal keyword 'hex'

     5. 'end'
2 errors, 0 warnings, 0 comments

Table A-1 lists all the extension options and their default values. Several additional options, not documented here, allow one of several option dialects to be set. The default dialect is the XGC dialect and is set by default, or by the compiler option -fxgc-profile.