openpty（）在C ++ Xcode中无法识别

I have a weird error occurring, where if I use the function openpty() in C program it compiles ok but if I have the exact same code in a C++ program I get a compiler error:

我发生了一个奇怪的错误,如果我在C程序中使用函数openpty()它编译好,但如果我在C ++程序中有完全相同的代码我得到一个编译器错误:

error: 'openpty' was not declared in this scope

Both Xcode projects have the exact same code in one file (main.c and main.cpp respectively).

两个Xcode项目在一个文件中都有完全相同的代码(分别是main.c和main.cpp)。

How can I fix this error?

我该如何解决这个错误?

Code:

#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h> 
#include <termios.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#include <sys/select.h>
#include <string.h>

int main (int argc, const char * argv[]) {
    int gps_fdm, gps_fds;
    char slave_port_name[256];
    int open_res = openpty(&gps_fdm, &gps_fds, slave_port_name, NULL, NULL); // compiler error here
    return 0;
}

*Taking advice from the comments I have attempted to include pty.h. Unfortunately this creates a compiler error error: pty.h: No such file or directory.

*从我试图包括pty.h的评论中获取建议。不幸的是,这会产生编译器错误错误:pty.h:没有这样的文件或目录。

1 个解决方案

#1

According to the man page for openpty(), you don't include some hypothetical "pty.h". You need to #include <util.h>.

根据openpty()的手册页,你没有包含一些假设的“pty.h”。你需要#include 。