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

Basic definition of program, Q. Basic defination of program? A program ...

Q. Basic defination of program? A program generally consists of a set of instructions and data specifying the solution of a particular problem. Programs (and data) expressed in

Determine the minimal sum of products for boolean expression, Determine the...

Determine the Minimal sum of products for the Boolean expression? Obtain the minimal sum of products for the Boolean expression f=(1,2,3,7,8,9,10,11,14,15) using Quine-McCluske

Combined parallel work-sharing constructs, Q. Combined Parallel Work-sharin...

Q. Combined Parallel Work-sharing Constructs? Combined parallel work sharing constructs are shortcuts for specifying a work sharing construct nested instantaneously in a parall

Difference between next and continue clause, The difference among the next ...

The difference among the next and continue verb is that in the continue verb it is used for a situation where there is no EOF condition that is the records are to be accessed again

Convert the following decimal numbers into octal, Q. Convert the following ...

Q. Convert the following DECIMAL numbers into OCTAL, double check by converting the result OCTAL to DECIMAL. a) 932 b) 4429.625 c) 19

Write a short note on mmx technology, Write a short note on MMX technology....

Write a short note on MMX technology. MMX (Multimedia extensions) technology adds 57 new instructions to instruction set of the Pentium - 4 microprocessors. MMX technology also

Describe architecture of wap gateway, Describe architecture of WAP gateway....

Describe architecture of WAP gateway. WAP GATEWAY : It is a very unique product giving semi-automatic redirection of HTML documents to WAP compatible mobile phones. Wir

What are the basic functions of database utility, What are the basic functi...

What are the basic functions of Database utility? The basic features of database utility are: Make database objects. Remove database objects. Adjust database obj

What is the function of cu, What is the function of CU? The control uni...

What is the function of CU? The control unit works as the nerve center that coordinates all the computer operations. It issues timing signals that governs the data transfer.

Determine condition how the output changed of JK flipflop, The output of a ...

The output of a JK flipflop with asynchronous preset and clear inputs is '1'. The output can be changed to '0' with which conditions ? Ans. Through applying J = 1, K = 1 and u

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