General Utilities 3 Quiz Online Practice Test

1. The function that determines the number of bytes in the multibyte character pointed to by a character is ___________.

2. In the mblen() function, the pointer refers to the _________.

3. Which function is used to convert a multibyte character to a wide character?

4. Which function is responsible for converting a wide-character string into a multibyte string?

5. The C library function _____________ is used to convert a wide character into its multibyte representation.

6. What does the mbstowcs() function return regarding the number of modified array elements, excluding any terminating zero code?

7. What is the function of the following C code?
#include <stdlib.h>
_Mbsave_Mbxlen = {0};
int (mblen)(const char *s, size_t n) {
return (_Mbtowc(NULL, s, n, &_Mbxlen));
}

8. What is the function of the following C code?
#include <stdlib.h>
_Mbsave _Mbxtowc = {0};
int (mbtowc)(wchar_t *pwc, const char *a, size_t n) {
return (-Mbtowc(pwc, a, n, &_Mbxtowc));
}

9. In the following C code, what does “a” represent?
size_t wcstombs(char *s, const wchar_t *a, size_t n);

10. What does the mblen() function return under specific conditions?

11. What will happen when the following C code is compiled?
void main() {
char com[50];
strcpy(com, "dir");
system(com);
}

12. The initial seed for the function srand(unsigned int seed) is ________.

13. Which statement accurately describes RAND_MAX?

14. Which of the following functions contradicts the statement "errno is not necessarily set on conversion error"?

15. What function does the following code perform?
void free(void *p);

16. Which of the following options is declared in the stdlib.h header file?

17. Is MB_CUR_MAX defined in the stdlib.h header file?