C Programming · all questions

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296

Questions

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Q281

Within main, return expr statement is equivalent to . . . . . . . .

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Q282

ungetc() can be used only with getc().

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Q283

calloc() returns storage that is initialized to.

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Q284

puts() does the following when it writes to stdout.

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Q285

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    char buf[12];
    stderr = stdin;
    fscanf(stderr, "%s", buf);
    printf("%s\n", buf);
}

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Q286

Which of the following statement is true?

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Q287

Control string specifies the type and format of the data that has to be obtained from the keyboard.

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Q288

What form the data must be entered for the given C code?

scanf(“%d / %d”, &n1,&n2);

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Q289

What are the first and second arguments of fopen?

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Q290

In a variable length argument function, the declaration "..." can . . . . . . . .

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Q291

What will be the output of the following C code?

#include <stdio.h>
int main()
{
    srand(time(NULL));
    printf("%d\n", rand());
    return 0;
}

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Q292

What will be the output of the following C code?

#include <stdio.h>
#include <string.h>
int main()
{
    char line[3];
    FILE *fp;
    fp = fopen("newfile.txt", "r");
    while (fgets(line, 3, fp))
    fputs(line, stdout);
    return 0;
}

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Q293

What will be the output of the following C code?

char str[] = "Hello Nancy“;
printf(“\n %.7s”, str) ;

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Q294

What will be the output of the following C code?

#include <stdio.h>
int main(int argc, char **argv)
{
    char *s = "myworld";
    int i = 3;
    printf("%10.*s", i, s);
}

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Q295

What is the syntax of ungetc()?

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Q296

scanf() is a predefined function in. . . . . . . .header file.

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