Reading a string from a file - C

electroRF

Member

• Mar 5, 2013

• #1

Hi,
Could you tell me please why this code only prints the first word of the file?

char str[50];
FILE* pFile;

pFile = fopen("myFile.txt", "r");

if (NULL != pFile)
{

fgets(pFile, str);

printf("The first word in the file is %s\n", str);

fclose(pFile);
}


---
I got additional question please.

is it possible to move files from one directory to another with C?

 

Last edited: Mar 5, 2013

misterT

Well-Known Member

Most Helpful Member

• Mar 5, 2013

• #2

To me that code looks like it prints the first line of the file, not the first word. Fgets should read until either a newline or an EOF is received or until the specified limit is reached (you are missing the limit parameter).

..actually the first parameter to fgets should be the str, and third parameter the file.

https://www.lix.polytechnique.fr/~liberti/public/computing/prog/c/C/FUNCTIONS/fgets.html

 

Last edited: Mar 5, 2013

Ian Rogers

User Extraordinaire

Forum Supporter

Most Helpful Member

• Mar 5, 2013

• #3

If you are working with DOS.. Then DOS.H has all the functions needed for file movement...

 

electroRF

Member

• Mar 6, 2013

• #4

Thanks guys!

@misterT
you're right, it works well now.

@Ian
I'm working with windows.
Is C# needed for copying files from one folder to another?

 

Ian Rogers

User Extraordinaire

Forum Supporter

Most Helpful Member

• Mar 6, 2013

• #5

I'm working with windows.
Is C# needed for copying files from one folder to another?

Click to expand...

What compiler are you using?

 

misterT

Well-Known Member

Most Helpful Member

• Mar 6, 2013

• #6

You don't need C# (.NET Framework) to work with files in windows, but the .NET framework is by far the easiest to use.

With C/C++ you can use Windows API, or some of the wrappers written using WinAPI.. like MFC.
https://msdn.microsoft.com/en-us/library/vstudio/cc433218.aspx
https://en.wikipedia.org/wiki/Windows_API

 

Last edited: Mar 6, 2013