57 lines
1.2 KiB
C++
57 lines
1.2 KiB
C++
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/***
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* ostrulng.cpp - definitions for ostream class operator<<(unsigned long) funct
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*
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* Copyright (c) 1991-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* Contains the member function definition for ostream
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* operator<<(unsigned long).
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*
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*Revision History:
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* 09-23-91 KRS Created. Split out from ostream.cxx for granularity.
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* 06-14-95 CFW Comment cleanup.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <internal.h>
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#include <stdio.h>
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#include <iostream.h>
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#pragma hdrstop
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ostream& ostream::operator<<(unsigned long n)
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{
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_WINSTATIC char obuffer[12];
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_WINSTATIC char fmt[4] = "%lu";
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_WINSTATIC char leader[4] = "\0\0";
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if (opfx()) {
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if (n)
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{
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if (x_flags & (hex|oct))
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{
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if (x_flags & hex)
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{
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if (x_flags & uppercase)
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fmt[2] = 'X';
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else
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fmt[2] = 'x';
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leader[1] = fmt[2]; // 0x or 0X (or \0X)
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}
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else
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fmt[2] = 'o';
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if (x_flags & showbase)
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leader[0] = '0';
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}
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else if (x_flags & showpos)
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{
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leader[0] = '+';
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}
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}
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sprintf(obuffer,fmt,n);
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writepad(leader,obuffer);
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osfx();
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}
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return *this;
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}
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