/usr/include/stdio.h:531:12: note: expected ‘struct FILE *’ but argument is of type ‘FILE’

答案:1 悬赏:80

解决时间 2021-03-05 17:15

提问者网友：斯文败类
2021-03-05 04:23

#include
#include

int main(void)
{
FILE* fp;
char ch;

if( (fp=fopen("a.txt","r")) == NULL )
{
printf("Cannot open the file.\n");
exit(-1);
}

while((ch = fgetc(*fp)) != EOF)
putchar(ch);

fclose(fp);
return 0;
}

gcc rr.c 后来出现下列问题。怎么回事儿？？？

rr.c: In function ‘main’:
rr.c:22:2: error: incompatible type for argument 1 of ‘fgetc’
while((ch = fgetc(*fp)) != EOF)
^
In file included from rr.c:8:0:
/usr/include/stdio.h:531:12: note: expected ‘struct FILE *’ but argument is of type ‘FILE’
extern int fgetc (FILE *__stream);

最佳答案

二级知识专家网友：统治我的世界
2021-03-05 04:53

#include
#include

int main(void)
{
        FILE* fp;
        char  ch;

        if( (fp=fopen("a.txt","r")) == NULL )
        {
                printf("Cannot open the file.\n");
                exit(-1);
        }

        while((ch = fscanf(fp,"%c",&ch)) != EOF)//这里改正一下
                putchar(ch);

        fclose(fp);
        return 0;
}

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