HP SunSoft Pascal 4.0 - Manual (Page 114)

90 Pascal 4.0 User’s Guide
6
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 8 8
longreal double 8 8
real double 8 8
single float 4 4
shortreal float 4 4
integer16 short int 2 2
integer32 int 4 4
integer int 4 4
-128..127 char 1 1
boolean char 1 1
alfa char a [10 ] 10 1
char char 1 1
string char a [80] 80 1
varying[n] of char struct { int , char [n]} - 4
record struct/union - Same as element type