windows-nt/Source/XPSP1/NT/base/crts/crtw32/iostream/istrdbl.cpp
2020-09-26 16:20:57 +08:00

41 lines
966 B
C++

/***
* istrdbl.cpp - definition for operator>>(double) member funct for istream class
*
* Copyright (c) 1991-2001, Microsoft Corporation. All rights reserved.
*
*Purpose:
* Definition of operator>>(double) member function for istream class.
* [AT&T C++]
*
*Revision History:
* 09-26-91 KRS Created. Split off from istream.cxx for granularity.
* 12-30-92 KRS Fix indirection problem with **endptr.
* 06-14-95 CFW Comment cleanup.
*
*******************************************************************************/
#include <cruntime.h>
#include <internal.h>
#include <stdlib.h>
#include <iostream.h>
#pragma hdrstop
#pragma check_stack(on) // large buffer(s)
#define MAXDBLSIZ 28
istream& istream::operator>>(double& n)
{
_WINSTATIC char ibuffer[MAXDBLSIZ];
char ** endptr = (char**)NULL;
if (ipfx(0))
{
if (getdouble(ibuffer, MAXDBLSIZ)>0)
{
n = strtod(ibuffer, endptr);
}
isfx();
}
return *this;
}