The novice fread fwrite questions-CodePudding

# include
# include
# include
Int main (int arg c, char * argv []) {
The FILE * fpin, * fpout;
Unsigned char buf [100].

Fout char fin [100], [100].
int n;
If (argcPrintf (" arg c=[% d] \ n ", arg c);
exit(0);
}
for (int i=0; iPrintf (" argv [I]=% s ", I, argv [I]);
}

Strcpy (fin, argv [1]);
Strcpy (fin, argv [2]);

Fpin=fopen (fin, "rb");
Fpout=fopen (fout, "wb");

N=fread (buf, sizeof (unsigned char), 100, fpin);
While (n==100) {
Fwrite (buf, seizeof (unsigned char), 100, fpout);
N=fread (buf, sezeof (unsigned char), 100, fpin);
}
return 0;
}

Line 26 fwrite (buf, seizeof (unsigned char), 100, fpout);
Such mistake could you tell me how to solve? [Error] expected primary - expression before 'unsigned,
And what I wrote the wrong place, can post don't know that for the first time

CodePudding user response:

The two sentence syntactically incorrect:

 fwrite (buf, sizeof (unsigned char), 100, fpout);//seizeof 
N=fread (buf, sizeof (unsigned char), 100, fpin);//sezeof

CodePudding user response:

 # include 
# include 
# include 

Int main (int arg c, char * argv []) 
{
The FILE * fpin, * fpout; 
Unsigned char buf [100]. 

Fout char fin [100], [100]. 
int n; 
If (argc<3) {
Printf (" arg c=% d, what the arguments \ n ", arg c); 
exit(0); 
} 
for (int i=0; i//printf (" argv [I]=% s ", I, argv [I]); 
Printf (" argv [% d]=% s \ n ", I, argv [I]); 
} 

Strcpy (fin, argv [1]); 
//strcpy (fin, argv [2]). 
Strcpy (fout, argv [2]); 

Fpin=fopen (fin, "rb"); 
if (! Fpin) 
return -1; 
Fpout=fopen (fout, "wb"); 
if (! Fpout) 
return -1; 

N=fread (buf, sizeof (unsigned char), 100, fpin); 
While (n==100) {
//fwrite (buf, seizeof (unsigned char), 100, fpout); 
//n=fread (buf, sezeof (unsigned char), 100, fpin); 
Fwrite (buf, sizeof (unsigned char), 100, fpout); 
N=fread (buf, sizeof (unsigned char), 100, fpin); 
} 
return 0; 
}

For your reference ~