A file can be accessed at random using fseek() functionfseek(fp,position,origin);fp file pointer position number of bytes offset from origin origin 0,1 or 2 denote thebeginning ,current position or end of file respectively.
C
Topic: Files
What is a random access file?
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WRITE C PROGRAMME TO CREATE A FILE AND READ A FILE.
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If errno contains a nonzero number, is there an error?
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What is a random access file?
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In header files whether functions are declared or defined?
What will be the content of 'file.c' after executing the following program?#include<stdio.h>
int main(){
FILE *fp1, *fp2;
fp1=fopen("file.c", "w"); fp2=fopen("file.c", "w");
fputc('A', fp1);
fputc('B', fp2);
fclose(fp1);
fclose(fp2);
return 0;
}
If the file 'source.txt' contains a line "Be my friend" which of the following will be the output of below program?
#include<stdio.h>
int main(){
FILE *fs, *ft;
char c[10];
fs = fopen("source.txt", "r");
c[0] = getc(fs);
fseek(fs, 0, SEEK_END);
fseek(fs, -3L, SEEK_CUR);
fgets(c, 5, fs);
puts(c); return 0;
}
What will be the output of the program ?#include<stdio.h>int main(){
FILE *ptr; char i;
ptr = fopen("myfile.c", "r"); while((i=fgetc(ptr))!=NULL) printf("%c", i); return 0;}
Out of fgets() and gets() which function is safe to use and why?
In a file contains the line "I am a boyrn" then on reading this line into the array str using fgets(). What will str contain?
Which of the following operations can be performed on the file "NOTES.TXT" using the below code? FILE *fp;fp = fopen("NOTES.TXT", "r+");
What is the purpose of ftell ?
What is the purpose of rewind() ?
What is the use of header file in c?
What are header files? Are functions declared or defined in header files ?
When we open a file, how does functions like fread( )/fwrite( ), etc. get to know from where to read or to write the data?
How to obtain a path of the given file?
