汗！5.0.7 下 curses 编译出错的问题

unixson

刚开始学的是ncurses，但ncurses的form表单好像无法处理中文。后来转为curses写程序却编译出错！郁闷死。具体情况如下：
开发环境是:
  sco unix openserver 5.0.7
  GNU Development Tools(系统自带)
  SCO OpenServer Development System(系统自带)
  SCO OpenServer Enterprise System(系统自带)
  UDK 7.1.3

测试用的源代码如下：
#main.cpp
#include <curses.h>
#include <form.h>
#include <locale.h>
#include <string.h>

int main(){
  setlocale(LC_ALL,"POSIX");  
  FIELD *field[3];
  FORM *my_form;

  int ch;

  initscr();
  cbreak();
  noecho();
  keypad(stdscr,TRUE);

  field[0]=new_field(1,10,4,18,0,0);
  field[1]=new_field(1,10,6,18,0,0);
  field[2]=NULL;

  set_field_back(field[0],A_UNDERLINE);
  field_opts_off(field[0],O_AUTOSKIP);

  set_field_back(field[1],A_UNDERLINE);
  field_opts_off(field[1],O_AUTOSKIP);

  my_form=new_form(field);
  post_form(my_form);
  refresh();

  mvprintw(6,10,"Value 2:");
  mvprintw(4,10,"Value 1:");

  refresh();

  while((ch=getch())!=KEY_F(1)){
    switch(ch){
    case KEY_DOWN:
    case '\n':
    case KEY_ENTER:
      form_driver(my_form,REQ_NEXT_FIELD);
      form_driver(my_form,REQ_END_LINE);
      break;
    case KEY_UP:
      form_driver(my_form,REQ_PREV_FIELD);
      form_driver(my_form,REQ_END_LINE);
      break;
    case KEY_LEFT:
      form_driver(my_form,REQ_PREV_CHAR);
      break;
    case KEY_RIGHT:
      form_driver(my_form,REQ_NEXT_CHAR);
      break;
    case KEY_HOME:
      form_driver(my_form,REQ_BEG_LINE);
      break;
    case KEY_END:
      form_driver(my_form,REQ_END_LINE);
      break;
    case KEY_BACKSPACE:
      form_driver(my_form,REQ_DEL_PREV);
      break;
    case KEY_DC:
      form_driver(my_form,REQ_DEL_CHAR);
      break;
    default:
      form_driver(my_form,'-');
      form_driver(my_form,ch);
      break;
    }
  }
  unpost_form(my_form);
  free_form(my_form);
  free_field(field[0]);
  free_field(field[1]);
  endwin();
  return 0;
}

编译命令行：
g++ -o main main.cpp -lform -lcurses

错误提示：
Undefined                first referenced
symbol                              in file
free_field(fieldnode *)                 main.o
field_opts_off(fieldnode *, int)    main.o
new_field(int, int, int, int, int, int)main.o
post_form(formnode *)               main.o
free_form(formnode *)                main.o
unpost_form(formnode *)           main.o
new_form(fieldnode **)              main.o
form_driver(formnode *, int)       main.o
set_field_back(fieldnode *, unsigned long)main.o
ERROR: Symbol referencing errors. No output written to main
collect2: ld returned 1 exit status
*** Error code 1 (bu21)

在线等...

[ 本帖最后由 unixson 于 2008-2-19 11:10 编辑 ]

sunlan

不要用g++，用cc

unixson

CC命令行：
CC main.cpp -lcurses -lform -omain
显示错误：
undefined                        first referenced
symbol                              in file
new_field(int,int,int,int,int,int)                    /tmp/CC.10078/main.o
set_field_back(fieldnode*,unsigned long)      /tmp/CC.10078/main.o
field_opts_off(fieldnode*,int)       /tmp/CC.10078/main.o
new_form(fieldnode**)             /tmp/CC.10078/main.o
post_form(formnode*)              /tmp/CC.10078/main.o
form_driver(formnode*,int)           /tmp/CC.10078/main.o
unpost_form(formnode*)            /tmp/CC.10078/main.o
free_form(formnode*)              /tmp/CC.10078/main.o
free_field(fieldnode*)            /tmp/CC.10078/main.o
i386ld fatal: Symbol referencing errors. No output written to main


cc命令行：
rename main.cpp main.c #不改名不能编译
cc main.c -lcurses -lform -omain
显示错误：
"main.c", line 8: error: Syntax error before or at: *
"main.c", line 18: error: undefined symbol: field
"main.c", line 18: error: cannot dereference non-pointer type
"main.c", line 18: warning: improper pointer/integer combination: op "="
"main.c", line 19: error: cannot dereference non-pointer type
"main.c", line 19: warning: improper pointer/integer combination: op "="
"main.c", line 20: error: cannot dereference non-pointer type
"main.c", line 22: error: cannot dereference non-pointer type
"main.c", line 22: warning: improper pointer/integer combination: arg #1
"main.c", line 23: error: cannot dereference non-pointer type
"main.c", line 23: warning: improper pointer/integer combination: arg #1
"main.c", line 25: error: cannot dereference non-pointer type
"main.c", line 25: warning: improper pointer/integer combination: arg #1
"main.c", line 26: error: cannot dereference non-pointer type
"main.c", line 26: warning: improper pointer/integer combination: arg #1
"main.c", line 28: error: undefined symbol: my_form
"main.c", line 28: warning: improper pointer/integer combination: arg #1
"main.c", line 28: warning: improper pointer/integer combination: op "="
"main.c", line 29: warning: improper pointer/integer combination: arg #1
"main.c", line 37: error: undefined symbol: ch
"main.c", line 42: warning: improper pointer/integer combination: arg #1
"main.c", line 43: warning: improper pointer/integer combination: arg #1
"main.c", line 46: warning: improper pointer/integer combination: arg #1
"main.c", line 47: warning: improper pointer/integer combination: arg #1
"main.c", line 50: warning: improper pointer/integer combination: arg #1
"main.c", line 53: warning: improper pointer/integer combination: arg #1
"main.c", line 56: warning: improper pointer/integer combination: arg #1
"main.c", line 59: warning: improper pointer/integer combination: arg #1
"main.c", line 62: warning: improper pointer/integer combination: arg #1
"main.c", line 65: warning: improper pointer/integer combination: arg #1
"main.c", line 68: warning: improper pointer/integer combination: arg #1
"main.c", line 69: warning: improper pointer/integer combination: arg #1
"main.c", line 73: warning: improper pointer/integer combination: arg #1
"main.c", line 74: warning: improper pointer/integer combination: arg #1
"main.c", line 75: error: cannot dereference non-pointer type
"main.c", line 75: warning: improper pointer/integer combination: arg #1
"main.c", line 76: error: cannot dereference non-pointer type
"main.c", line 76: warning: improper pointer/integer combination: arg #1

sunlan

用CC编译时把.o文件先全删了。
sco自带的curses库是COFF格式，gcc编译只支持ELF格式，不生成COFF格式，两者不兼容，所以无法链接。sco的cc不能用来编译cpp文件

unixson

偶没有直接用到.o文件，而是直接从源文件编译的呀？

删除了当前目录下的*.o文件，删除/tmp下的所有文件。
CC main.cpp -lcurses -lform -omain
结果还是老样子。会不会是我系统的问题？
在/lib下有：
libcurses.so
libcurses.a
libform.a
没有libform.so文件，会不会是这个原因？

[ 本帖最后由 unixson 于 2008-2-19 11:11 编辑 ]

unixson

偶现在重装系统，没办法。

sunlan

没有libform.so没关系
另外，ncurses完全可以支持中文，而且我个人感觉比SCO自带的curses库要好用。
在ncurses中使用中文需要调用meta(win,TRUE)，这个在SCO下也应该是一样的

unixson

ncurses能支持中文？关于ncurses中文处理，我再开一贴。

[ 本帖最后由 unixson 于 2008-2-19 16:16 编辑 ]

unixson

重装了一遍系统，sco5.07，development System,Linker and Application Development Libraries
CC main.cpp -lform -lcurses

仍然提示相同的错误！

unixson

到老外论坛上问了下，终于搞定了！！谢谢各位的帮助。