NetBSD/gnu/lib/libg++/iostream/igetsb.C

49 lines
1.5 KiB
C

// This is part of the iostream library, providing input/output for C++.
// Copyright (C) 1992 Per Bothner.
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU Library General Public
// License along with this library; if not, write to the Free
// Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#include "ioprivate.h"
#include "iostream.h"
istream& istream::get(streambuf& sb, char delim /* = '\n' */)
{
_gcount = 0;
if (ipfx1()) {
register streambuf* isb = rdbuf();
for (;;) {
int len = isb->egptr() - isb->gptr();
if (len <= 0)
if (isb->underflow() == EOF)
break;
else
len = isb->egptr() - isb->gptr();
char *delimp = (char*)memchr((void*)isb->gptr(), delim, len);
if (delimp != NULL)
len = delimp - isb->gptr();
int written = sb.sputn(isb->gptr(), len);
isb->gbump(written);
_gcount += written;
if (written != len) {
set(ios::failbit);
break;
}
if (delimp != NULL)
break;
}
}
return *this;
}