根据 Micro-focus 支持站点中的文档,要从 C 程序调用 cobol 程序,我们只需要按照以下步骤操作即可。
main(int argv, char *argv)
{
cobinit(); /* Initialize COBOL environment */
cobcall("cobep", 0, NULL); /* Call a COBOL program */
cobtidy(); /* Close down COBOL environment */
return(0);
}
基于此,我想出了一个简单的 C 程序来调用已经工作的 Cobol 程序,但我猜我遇到了链接错误。
C程序
cat call.c
#include<stdio.h>
#include "cobcall.h"
#include "cobmain.h"
int main()
{
int ret=0;
cobinit();
ret=cobcall("cobolprogram.gnt",1,NULL);
cobtidy();
return 0;
}
错误信息接收
gcc -Wall call.c -o call
call.c: In function 'main':
call.c:10: warning: pointer targets in passing argument 1 of 'cobcall' differ in signedness
/usr/ccs/bin/ld: Unsatisfied symbols:
cobtidy (first referenced in /tmp/ccQBPw6r.o) (code)
cobcall (first referenced in /tmp/ccQBPw6r.o) (code)
cobinit (first referenced in /tmp/ccQBPw6r.o) (code)
collect2: ld returned 1 exit status