ncurses和curses - 编译器未定义的引用

Question

好的,所以我原本试图使用一些据说只用于Windows的标题,我的不好,但我已经离开了,只是使用curses.h复制了我需要的东西.但是我仍然收到完全相同的错误.

"/usr/bin/gmake" -f nbproject/Makefile-Debug.mk QMAKE= SUBPROJECTS= .build-conf
gmake[1]: Entering directory `/home/josh/Projects/Testing grounds/kbhit'
"/usr/bin/gmake"  -f nbproject/Makefile-Debug.mk dist/Debug/GNU-Linux-x86/kbhit
gmake[2]: Entering directory `/home/josh/Projects/Testing grounds/kbhit'
mkdir -p build/Debug/GNU-Linux-x86
rm -f build/Debug/GNU-Linux-x86/main.o.d
g++    -c -g -MMD -MP -MF build/Debug/GNU-Linux-x86/main.o.d -o build/Debug/GNU-Linux-x86/main.o main.cpp
mkdir -p dist/Debug/GNU-Linux-x86
g++     -o dist/Debug/GNU-Linux-x86/kbhit build/Debug/GNU-Linux-x86/main.o  
build/Debug/GNU-Linux-x86/main.o: In function `kbhit()':


/home/josh/Projects/Testing grounds/kbhit/main.cpp:20: undefined reference to `stdscr'
/home/josh/Projects/Testing grounds/kbhit/main.cpp:20: undefined reference to `wgetch'
/home/josh/Projects/Testing grounds/kbhit/main.cpp:23: undefined reference to `ungetch'
collect2: ld returned 1 exit status
gmake[2]: *** [dist/Debug/GNU-Linux-x86/kbhit] Error 1
gmake[2]: Leaving directory `/home/josh/Projects/Testing grounds/kbhit'
gmake[1]: *** [.build-conf] Error 2
gmake[1]: Leaving directory `/home/josh/Projects/Testing grounds/kbhit'
gmake: *** [.build-impl] Error 2

所以,我并不是100%确定代码应该像我期望的那样工作.我只是想编译它来测试它.根据curses.h文档,如果没有键排队,则getch应该返回值ERR.我真的不知道这里还需要什么,我认为我需要做的只是包括定义所在的标题.虽然这似乎还不够,但我必须有一些错过的东西.这是我试图编译的简短测试

#include <cstdlib>
#include <iostream>
#include <curses.h>
#include <ncurses.h>

using namespace std;

bool kbhit()
{
  int ch = getch();
  if(ch != ERR)
  {
    ungetch(ch);
    return true;
  }
  return false;

}

int main() {

  while(!kbhit())
  {
    cout << "no input";
  }
  cout << "Mummy, it's over.";
  return 0;
}

Answer 1

你没有链接到curses库.您需要提供-lncurses链接makefile中可执行文件的行.