Problem with the code in C. I get these errors: Lab1.c: In function ‘main’: Lab1

ID: 3844056 • Letter: P

Question

Problem with the code in C.

I get these errors:

Lab1.c: In function ‘main’:
Lab1.c:27:17: error: ‘arg’ undeclared (first use in this function)
target = fopen(arg[2], "w");
^
Lab1.c:27:17: note: each undeclared identifier is reported only once for each function it appears in

I was wondering how to fix these errors.

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Code:

#include <stdio.h>
#include <stdlib.h>

int main(int argc, char* argv[])
{
int ch;
// file descriptors
FILE *source, *target;

if (argc < 3) {
printf("Usage: fcopy <source> <target> ");
exit(EXIT_FAILURE);
}

// open source file for read
source = fopen(argv[1], "i");
if (source == NULL) // Could not open file
{
printf("1. Press any key to exit.. ");
exit(EXIT_FAILURE);
}

// open target file for write
target = fopen(arg[2], "w");
if (target == NULL) // Could not open file
{
fclose(source);
print("2. Press any key to exit... ");
exit(EXIT_FAILURE);
}

//Read character at a time for source file until we reach end of file (EOF)
// and write it to the target file

while ((ch = fgetc(source) ) != EOF)
fputc(ch, target);

print("File copied sucessfully./n");

// Must close both the files.
fclose(source);
fclose(target);

return 0;
}

Explanation / Answer

1. It's argv[2] instead of arg[2]

2.use printf instead of print

/*Rectified code:*/