无法编译使用 ncurses 的 C/C++ 代码
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Not able to compile C/C++ code that's using ncurses
提问by Touzen
I've just discovered ncurses and have just started learning it, however the examples in my tutorial don't compile on my computer.
我刚刚发现了 ncurses 并且刚刚开始学习它，但是我的教程中的示例无法在我的计算机上编译。
I had to install ncurses manually and did so by entering "apt-get install libncurses5-dev libncursesw5-dev". I had to do this because before having done so I got an error saying that I could not "#include ".
我必须手动安装 ncurses，然后输入“apt-get install libncurses5-dev libncursesw5-dev”。我必须这样做，因为在这样做之前，我收到一个错误，说我不能“#include”。
Installing it worked, but now I get this error instead:
安装它有效，但现在我收到此错误：
touzen@comp:~/learning_ncurses$ g++ -o hello_world hello_world.cpp
/tmp/ccubZbvK.o: In function `main':
hello_world.cpp:(.text+0xa): undefined reference to `initscr'
hello_world.cpp:(.text+0x16): undefined reference to `printw'
hello_world.cpp:(.text+0x1b): undefined reference to `refresh'
hello_world.cpp:(.text+0x20): undefined reference to `stdscr'
hello_world.cpp:(.text+0x28): undefined reference to `wgetch'
hello_world.cpp:(.text+0x2d): undefined reference to `endwin'
collect2: ld returned 1 exit status
The code I compiled looks like this:
我编译的代码是这样的：
#include <ncurses.h>
int main(){
initscr();
printw("Hai thar world...");
refresh();
getch();
endwin();
return 0;
}
Why do I get this error. And even more importantly, how do I fix this?
为什么我会收到这个错误。更重要的是，我该如何解决这个问题？
回答by Karoly Horvath
you have to link the ncurses library
你必须链接 ncurses 库
g++ -o hello_world hello_world.cpp -lncurses
