Initialize internal values.
  Set default values to internal members in the following way:

internal member:	value set:	can be obtained/modified by calling:
pointer to stream buffer	parameter sb	rdbuf
pointer to tied stream	null pointer	tie
fill character	space character	fill
format flags	skipws | dec	ios_base::flags
field width	0	ios_base::width
precision	6	ios_base::precision
locale	default locale	ios_base::getloc / ios_base::imbue
error state	ios_base::goodbit (or ios_base::badbit if sb is a null pointer)	rdstate / setstate
exception mask	ios_base::goodbit	exception
internal extensible arrays	null pointer	ios_base::iword, ios_base::pword

Parameters.

sb

pointer to a streambuf object.

Return Value.
  None.

Basic template member declaration ( basic_ios<charT,traits> ):

void init ( basic_streambuf<charT,traits>* sb );

See also.
  (constructor)
  ios class