75 lines
1.6 KiB
C++
75 lines
1.6 KiB
C++
|
|
|||
|
|
/* Copyright (c) 1985, 87 by Borland International, Inc.
|
|||
|
|
|
|||
|
|
This module demonstrates how to write Turbo C routines that
|
|||
|
|
can be linked into a Turbo Pascal program. Routines in this
|
|||
|
|
module call Turbo Pascal routines in CPASDEMO.PAS.
|
|||
|
|
|
|||
|
|
See the instructions in the file CPASDEMO.PAS on running
|
|||
|
|
this demonstration program */
|
|||
|
|
|
|||
|
|
typedef unsigned int word;
|
|||
|
|
typedef unsigned char byte;
|
|||
|
|
typedef unsigned long longword;
|
|||
|
|
|
|||
|
|
extern void setcolor(byte newcolor); /* procedure defined in
|
|||
|
|
Turbo Pascal program */
|
|||
|
|
extern word factor; /* variable declared in Turbo Pascal program */
|
|||
|
|
|
|||
|
|
word sqr(int i)
|
|||
|
|
{
|
|||
|
|
setcolor(1);
|
|||
|
|
return(i * i);
|
|||
|
|
} /* sqr */
|
|||
|
|
|
|||
|
|
word hibits(word w)
|
|||
|
|
{
|
|||
|
|
setcolor(2);
|
|||
|
|
return(w >> 8);
|
|||
|
|
} /* hibits */
|
|||
|
|
|
|||
|
|
byte suc(byte b)
|
|||
|
|
{
|
|||
|
|
setcolor(3);
|
|||
|
|
return(++b);
|
|||
|
|
} /* suc */
|
|||
|
|
|
|||
|
|
byte upr(byte c)
|
|||
|
|
{
|
|||
|
|
setcolor(4);
|
|||
|
|
return((c >= 'a') && (c <= 'z') ? c - 32 : c);
|
|||
|
|
} /* upr */
|
|||
|
|
|
|||
|
|
char prd(char s)
|
|||
|
|
{
|
|||
|
|
setcolor(5);
|
|||
|
|
return(--s);
|
|||
|
|
} /* prd */
|
|||
|
|
|
|||
|
|
long lobits(long l)
|
|||
|
|
{
|
|||
|
|
setcolor(6);
|
|||
|
|
return((longword)l & 65535);
|
|||
|
|
} /* lobits */
|
|||
|
|
|
|||
|
|
void strupr(char *s)
|
|||
|
|
{
|
|||
|
|
int counter;
|
|||
|
|
|
|||
|
|
for (counter = 1; counter <= s[0]; counter++) /* Note that the routine */
|
|||
|
|
s[counter] = upr(s[counter]); /* skips Turbo Pascal's */
|
|||
|
|
setcolor(7); /* length byte */
|
|||
|
|
} /* strupr */
|
|||
|
|
|
|||
|
|
byte boolnot(byte b)
|
|||
|
|
{
|
|||
|
|
setcolor(8);
|
|||
|
|
return(b == 0 ? 1 : 0);
|
|||
|
|
} /* boolnot */
|
|||
|
|
|
|||
|
|
word multbyfactor(word w)
|
|||
|
|
{
|
|||
|
|
setcolor(9); /* note that this function accesses the Turbo Pascal */
|
|||
|
|
return(w * factor); /* declared variable factor */
|
|||
|
|
} /* multbyfactor */
|
|||
|
|
|