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

Describe about the protection features present in ms access, If a programme...

If a programmer doesn't wish to make modifies to the document he can lock the document data and its code from more changes by changing the extension of the file system to .MDE. Cha

What are the address-sequencing capabilities, What are the address-sequenci...

What are the address-sequencing capabilities required in a control memory? i. Incrementing the control address register ii. Unconditional branch as specified by address fiel

Explain memory write operation, Q. Explain Memory Write operation? Memo...

Q. Explain Memory Write operation? Memory write operation transfers content of a data register to a memory word M selected by the address. Presume that data of register R1 is t

Break keys, Like a normal read, your input should break on the new line cha...

Like a normal read, your input should break on the new line character "\n"   and also on the up and down arrow keys. You will process the input made by the user when he/she enters

Technology impact on job design - information system, Technology impact on ...

Technology impact on job design - Information System The implementation of technology into work has had a significant impact on the types and content of job that are now avail

Determine the term- files, Determine the term- Files File maintenance i...

Determine the term- Files File maintenance is significant. Updating of files generally involves inserting, amending and deleting data. Example: A bank would amend data

Explain the method to identify the object classes, Explain the method to id...

Explain the method to identify the Object Classes You would always be careful while identifying relevant object classes from application domain. Objects may include physical e

Describe the limitation of fat16, Q. Describe the Limitation of FAT16? ...

Q. Describe the Limitation of FAT16? DOS designers decided to use clusters with as a minimum four sectors in them (so a cluster size of at least 2KB) for all FAT16 hard disks.

Determine a sample rate required for telephone conversation, A sample rate ...

A sample rate of            is required for a good quality representation of telephone conversation. A sample rate of 50 times/second /mile of distance travelled are needed fo

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