HP SunSoft Pascal 4.0 Manuel d'utilisateur télécharger pdf (Page 252)

228 Pascal 4.0 User’s Guide

The Straightforward Part—You can use the following items of information as

you ﬁnd them in the manual, with no change:

• The XView procedure names

• The XView object names

• The XView object data types (except Boolean, see the following section)

The More Complex Parts—You must make the following changes:

• Any elementary C data type used must be converted to the corresponding

Pascal data type.

• Any C procedure that returns something must be invoked in Pascal as a

function; otherwise, it must be invoked as a procedure.

• The XView type Boolean must be converted to the Pascal type, boolean.

Table 10-1 shows you how to convert C declarations to Pascal.

1. Deﬁned in stddefs_p.h

Table 10-1 C Declarations to Pascal Declarations

C Pascal

int integer, subrange, or numeric constant

unsigned unsigned, subrange, or numeric constant

short integer16, subrange, or numeric constant

unsigned short unsigned16, subrange, or nonnegative numeric constant

char char (or single-letter string literal for special deﬁnition modules)

float shortreal, longreal, or real constant (always passed

as LONGREAL)

double real or real constant

any pointer type pointer type

any enum type unsigned type

any struct type record type of corresponding size and layout

char * array of char or string literal

other array types array type of corresponding size

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HP SunSoft Pascal 4.0 Manuel d'utilisateur Page 252