2 Data Types and Type Specifiers

2.2 Foreign data types

The Foreign Function Interface has been modified to pass the new character and string data types from Lisp to foreign functions and vice versa.

The following changes have been made to the correspondence between C and Pascal data types and Lisp data types:

The foreign data type:simple-string now corresponds to the Lisp typesimple-base-string rather than tosimple-string.
The foreign data type:character now corresponds to the Lisp typebase-character rather than tocharacter.

For the SunOS and Solaris platforms, Table 2.3 shows how the new foreign data types correspond to extended characters and strings.

Passing extended characters to Lisp functions in Sunos and Solaris
Foreign Data Type Lisp Type Call Discipline
:wide-character character :value
:wide-string simple-general-string :reference
:euc-string simple-string :reference

Passing extended characters to Lisp functions in Sunos and Solaris
Foreign Data Type	Lisp Type	Call Discipline
`:wide-character`	`character`	`:value`
`:wide-string`	`simple-general-string`	`:reference`
`:euc-string`	`simple-string`	`:reference`

See Chapter 4, "Working Beyond the Lisp Environment" in the Advanced User's Guide for more information about the Foreign Function Interface.

International Character Sets - 9 SEP 1996

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