Change the length of this string to the specified newLength, erasing characters at the end if newLength < length() or appending the appropriate number of copies of CHAR_TYPE() at the end if length() < newLength.
newLength
newLength < length()
CHAR_TYPE()
length() < newLength
Declared in <bslstl_string.h>
<bslstl_string.h>
void resize(size_type newLength);