Value parameters, Simple types – HP SunSoft Pascal 4.0 User Manual

Page 153

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The C–Pascal Interface

129

6

Value Parameters

In general, Pascal passes value parameters in registers or on the stack,
widening to a full word if necessary.

Simple Types

With value parameters, simple types match, as in the following example:

The C function,

SimVal.c

void SimVal(

char

t,

char

f,

char

c,

short

si,

int

i,

float

sr,

double

r,

int

*reply)

{

*reply = 0;

if (t)

*reply += 01;

if (!f)

*reply += 010;

if (c == 'z')

*reply += 0100;

if (si == 9)

*reply += 01000;

if (i == 9)

*reply += 010000;

if (sr ==(float)9.9)

*reply += 0100000;

if (r == 9.9)

*reply +=01000000;

}

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