Options Controlling Pascal Dialect

In cases where the different Pascal dialects contradict, GNU Pascal complies to the ISO standard by default. However you can change this behavior using command-line options or associated compiler switches.

--nested-comments (*$N+*)

Enable { nested comments (* like this one *) in your } Pascal source. Without this option, comments may start with { and end with *). The compiler switch $N is equivalent to --nested-comments and allows local specifications. A cross reference to compiler switches is in preparation.

--char-escapes (*$E+*)

Enable C-style character escape sequences in strings.

--c-numbers (*$C+*)

Enable C-style octal and hexadecimal numbers: The decimal number 255 is equal to the hexadecimal number `16#FF' (Extended Pascal notation) or `$FF' (Borland Pascal notation) or `0xFF' (C notation--works only with this switch active) or the octal number `0177' (C notation--ditto).

--standard-pascal --extended-pascal --object-pascal --borland-pascal --pascal-sc

By default, GNU Pascal allows redefinition of keywords. Each of this switches causes GNU Pascal to forbid the redefinition of keywords of the specified standard. Furthermore, --borland-pascal implies --nested-comments (see above), and --pascal-sc implies --extended-syntax (see below).

--extended-syntax (*$X+*)

Enables "dangerous" features of GNU Pascal such as

@item function return value ignore (works always, but gives warning without --extended-syntax or $X+), @item user-defined operators (Pascal-SC style), @item other extensions we are working on.