Mail Archives: djgpp/2002/05/11/16:45:19
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| From: | degoble AT gtech (David. E. Goble)
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| Newsgroups: | comp.os.linux.development.apps,comp.os.msdos.djgpp
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| Subject: | undeclared identifiers: one *c prog not recognising a shared *.h file
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| Date: | Sat, 11 May 2002 20:35:15 GMT
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| Message-ID: | <3cdd7e32.103647057@news.adelaide.on.net>
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| Lines: | 635
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| To: | djgpp AT delorie DOT com
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| DJ-Gateway: | from newsgroup comp.os.msdos.djgpp
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| Reply-To: | djgpp AT delorie DOT com
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Hi;
/*
listing 2 - menu.h
*/
/* screen dimensions*/
#define MAX_ROWS 24
#define MAX_COLUMNS 80
/* keystroke codes and color */
#ifdef HPUX
#define UP_ARROW 3
#define DOWN_ARROW 2
#define LEFT_ARROW 4
#define RIGHT_ARROW 5
#define RETURN 10
#define ESCAPE 27
#endif
#ifdef SUN
#define UP_ARROW 65
#define DOWN_ARROW 66
#define LEFT_ARROW 68
#define RIGHT_ARROW 67
#define RETURN 10
#define ESCAPE 27
#endif
#ifdef VMS
#define UP_ARROW 274
#define DOWN_ARROW 275
#define LEFT_ARROW 276
#define RIGHT_ARROW 277
#define RETURN 13
#define ESCAPE 291 /* F11 */
#endif
#ifdef BCC
#define MAINCOLOR (F_RED | B_BLACK)
#define DIALOGCOLOR (F_CYAN | B_BLACK)
#define UP_ARROW 56
#define DOWN_ARROW 50
#define LEFT_ARROW 52
#define RIGHT_ARROW 54
#define RETURN 10
#define ESCAPE 27
#endif
/* macros for portability */
#ifndef VMS
#define BEGX _begx
#define BEGY _begy
#define MAXX _maxx
#else
#define BEGX _beg_x
#define BEGY _beg_y
#define MAXX _max_x
#endif
/* box characters */
#ifdef BCC
#define SINGLE_SIDE -77 /* single bar */
#define SINGLE_ACROSS -60
#define DOUBLE_SIDE -70 /* double bar */
#define DOUBLE_ACROSS -51
#else
#define SINGLE_SIDE '|'
#define SINGLE_ACROSS '-'
#define DOUBLE_SIDE '"'
#define DOUBLE_ACROSS '='
#endif
#define TCHOICES 3
/* menubar structure */
typedef struct mbar {
char string[80];
char letter;
int pos;
}MENUBAR;
/* pulldown menu choices */
typedef struct choices {
char string[20];
char letter;
int (*funcptr)();
} CHOICES;
/* pulldown menu structure */
typedef struct pmenu {
int num;
int maxlength;
CHOICES *ptr;
} PULLDOWN;
/* prototypes */
WINDOW *topbar(WINDOW *);
WINDOW *pulldown(int,int,int,int);
WINDOW *popup(int,int,int,int);
void move_window(WINDOW *win,int y, int x);
void print_string(WINDOW *,int, int, char *);
void erase_window(WINDOW *);
void delete_window(WINDOW *);
void refresh_window(WINDOW *);
int to_dialogue(char *);
void clear_dialogue(void);
void touch_window(WINDOW *);
char *strmenu(int, MENUBAR *, int);
char menu_choice(char *);
int clean_up(void);
void repaint(void);
char do_pulldown(int,PULLDOWN *, MENUBAR *);
void set_stdscr(void);
void execute_command(int, int, PULLDOWN *);
char do_menubar(WINDOW *, MENUBAR *);
void strtoupper(char *);
void strtolower(char *);
void set_stdscr(void);
char get_keystroke(void);
/*
listing3 - uilibs.c
*/
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <time.h>
#include <string.h>
#ifdef VMS
#include <smgdef.h>
#endif
#ifdef BCC
#include <dos.h>
#include <conio.h>
#include <ctype.h>
#endif
#include "curses.h"
#include "menu.h"
extern WINDOW *dialogue;
extern WINDOW *tbar;
static bar_size; /* size of menubar */
static int menu_pos; /* position in menubar */
/* display menubar */
WINDOW *topbar(WINDOW *win)
{
WINDOW *swin;
int string_count, string_size;
if((swin = subwin(win,3,(win->MAXX)-4,(win->BEGY)+1,
(win->BEGX)+2)) == NULL)
clean_up();
#ifdef BCC
wattrset(swin, F_BLUE | B_GRAY);
#endif
box (swin, SINGLE_SIDE,SINGLE_ACROSS);
bar_size = (swin->MAXX)-2;
menu_pos=0;
return (swin);
}
/* print string to menubar */
char do_menubar(WINDOW *swin, MENUBAR *menubar)
{
char * menu;
char buffer[80];
int status;
#ifdef VMS
int keyboard;
short term_code;
#else
char term_code;
#endif
#ifdef VMS
if ( (( status =
SMG$CREATE_VIRTUAL_KEYBOARD(&keyboard))&1)!=1)
clean_up();
#endif
term_code = 0;
while (term_code != RETURN) {
/* get the new menubar string */
menu = strmenu(bar_size, menubar, menu_pos);
mvwaddstr(swin, 1, 1, menu);
wrefresh(swin);
/* get a single keystroke */
#ifdef VMS
if ( (( status = SMG$READ_KEYSTROKE
(&keyboard,&term_code))&1)!=1)
clean_up();
#endif
#ifdef BCC
term_code = wgetch(swin);
#endif
#ifdef HPUX
term_code = getch();
#endif
#ifdef SUN
term_code = getch();
if (term_code == ESCAPE) {
getch();
term_code = getch();
}
#endif
/* process keystroke */
switch (term_code) {
/* arrows check for wrap-around */
case LEFT_ARROW:
if (menu_pos == 0)
menu_pos = TCHOICES-1;
else
menu_pos--;
break;
case RIGHT_ARROW:
if (menu_pos == TCHOICES-1)
menu_pos = 0;
else
menu_pos++;
break;
/* do nothing */
case RETURN:
break;
/* exit program */
case ESCAPE:
clean_up();
break;
/* return keyboard input */
default :
return (term_code);
break;
}
}
/* return highlighted option */
return (menubar[menu_pos].letter);
}
WINDOW *popup(int rows,int columns,int sy,int sx)
{
WINDOW *win;
win = newwin(rows, columns, sy, sx);
if(win == NULL) {
endwin();
clean_up();
}
#ifdef BCC
wattrset(win, F_BLACK | B_GRAY);
#endif
box(win, SINGLE_SIDE, SINGLE_ACROSS);
wrefresh(win);
return (win);
}
/* erase windows and surrounding box */
void erase_window(WINDOW *win)
{
werase(win);
box(win, ' ', ' ');
wrefresh(win);
}
void delete_window(WINDOW *win)
{
delwin(win);
}
void refresh_window(WINDOW *win)
{
wrefresh(win);
}
void touch_window(WINDOW *win)
{
touchwin(win);
wrefresh(win);
}
/* process pulldown menu options */
char do_pulldown
(int i, PULLDOWN *pullmenu, MENUBAR *menubar)
{
WINDOW *subwin1;
int j;
int position, oldpos;
char *ptr;
int status;
#ifdef VMS
int keyboard;
short term_code;
#else
char term_code;
#endif
#ifdef VMS
if ( (( status =
SMG$CREATE_VIRTUAL_KEYBOARD(&keyboard))&1)!=1)
clean_up();
#endif
subwin1 = popup( (pullmenu[i].num)+2,
(pullmenu[i].maxlength)+2,stdscr->BEGY+3,
(menubar[i].pos)+2 );
/* print pulldown options */
for (j=0;j<pullmenu[i].num;j++) {
ptr = pullmenu[i].ptr[j].string;
mvwaddstr(subwin1, j+1, 1, ptr );
}
term_code = 0;
position=0;
oldpos = 0;
while (term_code != RETURN) {
/* highlight selected option */
ptr = pullmenu[i].ptr[position].string;
strtoupper(ptr);
mvwaddstr(subwin1, position+1, 1, ptr );
wrefresh(subwin1);
/* get keystroke */
#ifdef VMS
if ( (( status =SMG$READ_KEYSTROKE
(&keyboard,&term_code)) & 1)!=1)
clean_up();
#endif
#ifdef BCC
term_code = wgetch(subwin1);
#endif
#ifdef HPUX
term_code = getch();
#endif
#ifdef SUN
term_code = getch();
if (term_code == ESCAPE) {
getch();
term_code = getch();
}
#endif
oldpos = position;
/* process keystroke */
switch (term_code) {
case UP_ARROW:
if (position == 0)
position = pullmenu[i].num-1;
else
position--;
break;
case DOWN_ARROW:
if (position == pullmenu[i].num-1)
position = 0;
else
position++;
break;
/* do nothing */
case RETURN:
break;
/* get keyboard input and
erase menu */
default :
erase_window(subwin1);
delwin(subwin1);
touchwin(stdscr);
wrefresh(stdscr);
touchwin(dialogue);
wrefresh(dialogue);
return (term_code);
break;
}
/* restore to lowercase */
ptr = pullmenu[i].ptr[oldpos].string;
strtolower(ptr);
mvwaddstr(subwin1, oldpos+1, 1, ptr );
wrefresh(subwin1);
}
/* return highlighted optoin
and erase menu */
delwin(subwin1);
erase_window(subwin1);
touchwin(stdscr);
wrefresh(stdscr);
touchwin(dialogue);
wrefresh(dialogue);
return (pullmenu[i].ptr[position].letter);
}
/* calculate and produce menubar string */
char *strmenu(int length, MENUBAR *menubar, int pos)
{
int i,j,k;
int count;
int string_length;
static char buffer[100];
/* determine max length for string */
string_length = length/TCHOICES;
k = 0;
j = 0;
/* add proper number of options */
for (i=0;i<TCHOICES;i++) {
menubar[i].pos = k;
/* add each option, highlight as necessary */
for (j=0;menubar[i].string[j]!='\0';j++,k++) {
if (pos == i)
buffer[k] = toupper(menubar[i].string[j]);
else
buffer[k] = tolower(menubar[i].string[j]);
}
/* pad with spaces to proper length */
while (k<(string_length*(i+1)+2)) {
buffer[k] = ' ';
k++;
}
}
return(buffer);
}
/* initialize the screen at start */
void set_stdscr(void)
{
int i;
wclear (stdscr);
#ifdef BCC
wattrset(stdscr, F_RED | B_BLUE);
/* fill in screen with color */
for (i=0;i<MAX_ROWS;i++)
mvinsertln(i,0);
#endif
box(stdscr, DOUBLE_SIDE, DOUBLE_ACROSS);
refresh();
return;
}
/* print string to dialogue box */
int to_dialogue(char *string)
{
clear_dialogue();
mvwaddstr(dialogue, 1, 1, string);
box(dialogue, SINGLE_SIDE, SINGLE_ACROSS);
wrefresh(dialogue);
return;
}
void clear_dialogue(void)
{
werase(dialogue);
box(dialogue, SINGLE_SIDE, SINGLE_ACROSS);
wrefresh(dialogue);
return;
}
void execute_command
(int i, int choice, PULLDOWN *pullmenu)
{
int j;
touch_window(tbar);
for (j=0;j<pullmenu[i].num;j++) {
/* use function pointer to execute command */
if ( choice == pullmenu[i].ptr[j].letter) {
(*(pullmenu[i].ptr[j].funcptr))();
break;
};
}
clear_dialogue();
}
/* convert a string to all uppercase */
void strtoupper(char *string)
{
int i;
for (i=0;string[i]!='\0';i++) {
string[i] = toupper(string[i]);
}
return;
}
/* convert a string to all lowercase */
void strtolower(char *string)
{
int i;
for (i=0;string[i]!='\0';i++) {
string[i] = tolower(string[i]);
}
return;
}
gcc -c uilibs.c
uilibs.c: In function `do_menubar':
uilibs.c:77: `RETURN' undeclared (first use in this function)
uilibs.c:77: (Each undeclared identifier is reported only once
uilibs.c:77: for each function it appears in.)
uilibs.c:110: `LEFT_ARROW' undeclared (first use in this function)
uilibs.c:117: `RIGHT_ARROW' undeclared (first use in this function)
uilibs.c:129: `ESCAPE' undeclared (first use in this function)
uilibs.c:111: warning: unreachable code at beginning of switch
statement
uilibs.c: In function `do_pulldown':
uilibs.c:252: `RETURN' undeclared (first use in this function)
uilibs.c:292: `UP_ARROW' undeclared (first use in this function)
uilibs.c:301: `DOWN_ARROW' undeclared (first use in this function)
uilibs.c:294: warning: unreachable code at beginning of switch
statement
- Raw text -