In a file contains the line "I am a boy\r\n" then on reading this line into the array str using fgets(). What will str contain?
What is the purpose of "rb" in fopen() function used below in the code?
FILE *fp;
fp = fopen("source.txt", "rb");
What does fp point to in the program ?
#include<stdio.h>
int main()
{
FILE *fp;
fp=fopen("trial", "r");
return 0;
}
Which of the following operations can be performed on the file "NOTES.TXT" using the below code?
FILE *fp;
fp = fopen("NOTES.TXT", "r+");
To print out a and b given below, which of the following printf() statement will you use?
#include<stdio.h>
float a=3.14;
double b=3.14;
Which files will get closed through the fclose() in the following program?
#include<stdio.h>
int main()
{
FILE *fs, *ft, *fp;
fp = fopen("A.C", "r");
fs = fopen("B.C", "r");
ft = fopen("C.C", "r");
fclose(fp, fs, ft);
return 0;
}
On executing the below program what will be the contents of 'target.txt' file if the source file contains a line "To err is human"?
#include<stdio.h>
int main()
{
int i, fss;
char ch, source[20] = "source.txt", target[20]="target.txt", t;
FILE *fs, *ft;
fs = fopen(source, "r");
ft = fopen(target, "w");
while(1)
{
ch=getc(fs);
if(ch==EOF)
break;
else
{
fseek(fs, 4L, SEEK_CUR);
fputc(ch, ft);
}
}
return 0;
}
To scan a and b given below, which of the following scanf() statement will you use?
#include<stdio.h>
float a;
double b;
Out of fgets() and gets() which function is safe to use?
Consider the following program and what will be content of t?
#include<stdio.h>
int main()
{
FILE *fp;
int t;
fp = fopen("DUMMY.C", "w");
t = fileno(fp);
printf("%d\n", t);
return 0;
}
Which of the following true about FILE *fp
When fopen() is not able to open a file, it returns
Who is father of C Language?