74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
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/***
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* istrgetl.cpp - definitions for istream class get() member function
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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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* Definitions of get and getline member functions istream class.
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* [AT&T C++]
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*
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*Revision History:
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* 09-26-91 KRS Created. Split off from istream.cxx for granularity.
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* 01-23-92 KRS C700 #5880: Add cast to fix comparison in get().
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* 05-11-95 CFW Change delim to int to support ignore(str,EOF).
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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 <iostream.h>
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#pragma hdrstop
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// unformatted input functions
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// signed and unsigned char make inline calls to this:
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// all versions of getline also share this code:
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istream& istream::get( char *b, int lim, int delim)
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{
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int c;
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unsigned int i = 0;
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if (ipfx(1)) // resets x_gcount
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{
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if (lim--)
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{
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while (i < (unsigned)lim)
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{
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c = bp->sgetc();
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if (c == EOF)
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{
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state |= ios::eofbit;
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if (!i)
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state |= ios::failbit;
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break;
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}
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else if (c == delim)
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{
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if (_fGline)
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{
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x_gcount++;
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bp->stossc(); // extract delim if called from getline
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}
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break;
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}
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else
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{
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if (b)
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b[i] = (char)c;
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bp->stossc(); // advance pointer
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}
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i++;
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}
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x_gcount += i; // set gcount()
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}
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isfx();
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lim++; // restore lim for test below
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}
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if ((b) && (lim)) // always null-terminate, if possible
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b[i] = '\0';
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_fGline = 0;
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return *this;
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}
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