《C程序设计语言》示例报错“conflicting types for ‘getline’”勘误

     手动跑C语言“圣经”《C程序设计语言》（https://book.douban.com/subject/1139336/）自带的例子（P21页）时，编译竟然报错，一脸懵逼。

1_9.c:7:5: error: conflicting types for ‘getline’ int getline(char line[], int maxline);     ^In file included from 1_9.c:1:0:/usr/include/stdio.h:678:20: note: previous declaration of ‘getline’ was here extern _IO_ssize_t getline (char **__restrict __lineptr,                    ^1_9.c:31:5: error: conflicting types for ‘getline’ int getline(char s[], int lim)     ^In file included from 1_9.c:1:0:/usr/include/stdio.h:678:20: note: previous declaration of ‘getline’ was here extern _IO_ssize_t getline (char **__restrict __lineptr,                    ^

     看一下报错，是和“ /usr/include/ ”下的C标准库“ stdio.h ”有冲突，该文件也声明定义了“ getline ”。

     所以，把原书示例中的“ getline ”函数换一下名字就OK了，编译成功。书的内容是有点老了！

root@ubuntu:~/c# gcc -o 1_9 1_9.c root@ubuntu:~/c# ./1_9 < 1_9.c for (i = 0; i < lim - 1 && (c = getchar()) != EOF && c != '\n'; ++i)