从org babel运行C的已完成程序

Question

我尝试从C-Primer-Plus运行示例

Listing 2.1 The first.c Program
#+BEGIN_SRC C :results output
#include <stdio.h>
int main(void)                /* a simple program             */
{
    int num;                  /* define a variable called num */
    num = 1;                  /* assign a value to num        */

    printf("I am a simple "); /* use the printf() function    */
    printf("computer.n");
    printf("My favorite number is %d because it is first.n",num);

    return 0;
}
#+END_SRC

它报告神秘错误为>

/tmp/babel-xEtnj6/C-src-mefAEj.c:9:15: error: stray ‘\302’ in program
    9 | int main(void)                /* a simple program             */
      |               ^
/tmp/babel-xEtnj6/C-src-mefAEj.c:9:16: error: stray ‘\240’ in program
    9 | int main(void)                /* a simple program             */
      |                ^
/tmp/babel-xEtnj6/C-src-mefAEj.c:9:17: error: stray ‘\302’ in program
    9 | int main(void)                /* a simple program             */
如果删除main()，它将起作用

#+BEGIN_SRC C
printf("Literature Programming");
#+END_SRC

#+RESULTS:
: Literature Programming
不幸的是，大多数C代码都封装在'main`中>]
如何使第一个示例起作用？

我试图从C-Primer-Plus清单2.1中运行一个示例.first.c程序＃+ BEGIN_SRC C：结果输出#include int main（void）// *一个简单的程序* / {/ {...

Answer 1

您可以尝试在代码块中添加:main no

#+BEGIN_SRC C :results output :main no
#include <stdio.h>

int main(void)                /* a simple program             */
{
    int num;                  /* define a variable called num */
    num = 1;                  /* assign a value to num        */

    printf("I am a simple "); /* use the printf() function    */
    printf("computer.n");
    printf("My favorite number is %d because it is first.n",num);

    return 0;
}
#+END_SRC
还请注意，还有其他有用的修饰符，例如:flag，:lib，:cmdline ...有关更多详细信息，请参见Header Arguments for C, C++, D Source Code Blocks。