HP SunSoft Pascal 4.0 Bedienungsanleitung PDF herunterladen (Seite 114)

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90 Pascal 4.0 User’s Guide

The -c option produces an unlinked object ﬁle. The -calign option causes

pc to use C-like data formats for aggregate objects.

When you compile a Pascal main routine that calls C, you don’t have to use

any special options, but the -calign option is again useful. The C object

library, libc, is automatically brought in for every Pascal compilation.

For example:

hostname% cc -c my_c.c

hostname% pc -calign my_c.o my_pascal.p

Compatibility of Types for C and Pascal

Table 6-1 and Table 6-2 list the default sizes and alignments of compatible

types for C and Pascal.

Table 6-1 C and Pascal Size and Alignment of Compatible Types

Pascal Type C Type Size (bytes) Alignment (bytes)

double double 88

longreal double 88

real double 88

single float 44

shortreal float 44

integer16 short int 22

integer32 int 44

integer int 44

-128..127 char 11

boolean char 11

alfa char a[10

] 10 1

char char 11

string char a[80] 80 1

varying[n] of char struct {int, char[n]} - 4

record struct/union - Same as element type

1 2 ... 109 110 111 112 113 114 115 116 117 118 119 ... 332 333

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