Question

Which function converts the wide-character string to a multibyte string?

(a) wcstombs()

(b) mbstowcs()

(c) mbtowc()

(d) mblen()

This question was posed to me during an interview.

This intriguing question originated from General Utilities topic in portion C Library of C

Answer 1

Correct option is (a) wcstombs()

The best I can explain: The C library function size_t wcstombs(char *ptr, const wchar_t *ws, size_t n)  is used to convert the wide-character string was to a multibyte string starting at ptr. At most n bytes are written to ptr.