Question

vs2012 vc++6.0 小问题error C2065: “stdprn”: 未声明的标识符

#include<stdlib.h>
#include<stdio.h>
void do_heading(char *filename);
int line=0,page=0;
int main (int argv,char* argc[])
{
char buffer[256];
FILE *fp;
if(argv<2)
{
fprintf(stderr,"\nProper Usage is:");
fprintf(stderr,"\n\nprint_it filename.ext\n");
return(1);
}
if((fp=fopen(argc[1],"r"))==NULL)
{
fprintf(stderr,"Error opening file,%s!",argc[1]);
return(1);
}
page=0;
line=1;
do_heading(argc[1]);
while(fgets(buffer,256,fp)!=NULL)
{
if(line%55==0)
do_heading(argc[1]);
fprintf(stdprn,"%4d:\t%s",line++,buffer);
}
fprintf(stdprn,"\f");
fclose(fp);
getchar();
return 0;
}

void do_heading(char *filename)
{
page++;
if(page>1)
fprintf(stdprn,"\f");
fprintf(stdprn,"page:%d,%s\n\n",page,filename);
}

出现问题error C2065: “stdprn”: 未声明的标识符

Answer 1

stdprn不是一个ANSI定义的值

要修改的话只要将stdprn语句修改成stdout语句。