Explain opening files for reading only in c, Computer Engineering

Assignment Help:

Opening Files for Reading Only    : A data file is a file that you can open and read its contents visually - for example, C source files, .dat files, HTML etc - anything that looks "neat" in Notepad. A binary file is a file that is written in machine code - usually seen as a mass of weird characters in Notepad! Examples are bitmaps, executables etc. To open a data file for reading only, pass "r" as the second argument of fopen, as demonstrated in this example:

#include

int main()

{

FILE *file; /* declare a FILE pointer */

file = fopen("data/hello.dat", "r");

/* open a text file for reading */

if(file==NULL)

{

}

else

{

}

}

printf("Error: can't open file.\n");

fclose(file); /*DON'T PASS A NULL POINTER TO fclose !! */

return 1;

 

 


Related Discussions:- Explain opening files for reading only in c

What is swapping, What is swapping?   A process can be swapped out tempo...

What is swapping?   A process can be swapped out temporarily of memory to a backing store and after that brought back in memory for execution as continued.

Evaluate bandwidth of disk drive, Q. Evaluate Bandwidth of disk drive? ...

Q. Evaluate Bandwidth of disk drive? Bandwidth:  Bandwidth can be measured in bytes per second. Sustained bandwidth is the average data rate at the time of a large transfer w

What do you mean by interrupts, Q. What do you mean by Interrupts? The ...

Q. What do you mean by Interrupts? The term interrupt is an exceptional event which causes CPU to temporarily transfer its control from presently executing program to a separat

Bootstrap, The device is packaged in a 80 pin PLCC device as shown.The main...

The device is packaged in a 80 pin PLCC device as shown.The main groupings of the pins are as follows Port A PA0 - PA7 Parallel Port or Timer Port B PB0 - PB7 Parallel Port or High

Cg, raster scan display system

raster scan display system

Implementation of a simple arithmetic, Q. Implementation of a Simple Arithm...

Q. Implementation of a Simple Arithmetic? So, by now we have concerned how logic and arithmetic micro-operations can be applied individually. If we combine these 2 circuits alo

What is binary, Binary is an alternative number system which works very goo...

Binary is an alternative number system which works very good for computers. Humans have ten fingers; that's probably why we use ten digits (0, 1, 2, 3, 4, 5, 6, 7, 8, and 9) in our

Make your simulation run faster, Ameliorating the mechanical delays of seek...

Ameliorating the mechanical delays of seeks and rottion are usually regardeed as major aspects of device drivers for disks. The simplest way for a disk device driver to service dis

What is keyboard layout, Q. What is Keyboard Layout? A keyboard layout ...

Q. What is Keyboard Layout? A keyboard layout is arrangement of keys across the keyboard. There is one keyboard layout which anybody who has worked on a standard keyboard or ty

Initial thought process, Initial thought process: Design a script which...

Initial thought process: Design a script which was simple and user friendly.  Integrate procedures/functions to extract data under the hood.  I focused on giving the user the o

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd