The ****`wcrtomb` function**** converts a wide character to its narrow `multi byte` character. The `wchar.h` header needs to be included to use this function as shown below:
```C
#include <wchar.h>
```

# Prototype
The function is written as shown below:
```C
size_t wcrtomb( char *mbc, wchar_t wc, mbstate_t *state);
```

# Parameters
**`mbc`** - the pointer to the character array that will store the `multi byte` character.

**`wc`** - the wide-character that is to be converted

**`state`** - the pointer to the `mbstate_t` object

# Example
The following code represents the use of the `wcrtomb` function. Line 13 resets the state to the initial conversion state: 

#include <string.h>
#include <stdio.h>
#include <wchar.h>

int main( void )
{
    size_t size = 0;
    mbstate_t state;
    char mbc = 0;
    wchar_t* wc = L"Q";

    //resetting initial conversion state
    memset(&state, 0, sizeof(state));

    size = wcrtomb(&mbc, *wc, &state); 
    if (size > 0)
    {
        printf("The corrsponding wide character \"");
        wprintf(L"%s\"", wc);
        printf(" was converted to \"%c\" ", mbc);
        printf("multibyte character.\n");
    }
    else //error condition
    {
        printf("No corresponding multibyte character "
               "was found.\n");
    }
}

What is wcrtomb() in C ?

Prototype

Parameters

Return value

Example