C Input and Output Test – 1

1. What will be the output of the following C code if following commands are used to run (considering myfile exists)?

    gcc -otest test.c
    ./test > myfile

     #include <stdio.h>
    int main(int argc, char **argv)
    {
        char c = 'd';
        putchar(c);
        printf(" %d\n", argc);
    } 

2. putchar(c) function/macro always outputs character c to the __________

3. The statement prog < infile causes _________

4. What will be the output of the following C code?

    #include <stdio.h>
    int main()
    {
        char c = '�';
        putchar(c);
    } 

5. What will be the output of the following C code if following commands are used to run and if myfile does not exist?

    gcc -o test test.c
    ./test > myfile
    
    #include <stdio.h>
    int main(int argc, char **argv)
    {
        char c = 'd';
        putchar(c);
        printf(" %d\n", argc);
    } 

6. What will be the output of the following C code if following commands are used to run (considering myfile exists)?

    gcc -otest test.c
    ./test < myfile

    #include <stdio.h>
    int main()
    {
        char c = 'd';
        putchar(c);
    } 

7. Which is not true about function tolower?