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Tricks of the Windows Gam…ming Gurus (2nd Edition)
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Disc2.iso
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vc98
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crt
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src
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gets.c
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C/C++ Source or Header
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1998-06-17
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2KB
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76 lines
/***
*gets.c - read a line from stdin
*
* Copyright (c) 1985-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* defines gets() and getws() - read a line from stdin into buffer
*
*******************************************************************************/
#include <cruntime.h>
#include <stdio.h>
#include <dbgint.h>
#include <file2.h>
#include <mtdll.h>
#include <tchar.h>
/***
*char *gets(string) - read a line from stdin
*
*Purpose:
* Gets a string from stdin terminated by '\n' or EOF; don't include '\n';
* append '\0'.
*
*Entry:
* char *string - place to store read string, assumes enough room.
*
*Exit:
* returns string, filled in with the line of input
* null string if \n found immediately
* NULL if EOF found immediately
*
*Exceptions:
*
*******************************************************************************/
_TCHAR * __cdecl _getts (
_TCHAR *string
)
{
int ch;
_TCHAR *pointer = string;
_TCHAR *retval = string;
_ASSERTE(string != NULL);
_lock_str2(0, stdin);
#ifdef _UNICODE
while ((ch = _getwchar_lk()) != L'\n')
#else /* _UNICODE */
while ((ch = _getchar_lk()) != '\n')
#endif /* _UNICODE */
{
if (ch == _TEOF)
{
if (pointer == string)
{
retval = NULL;
goto done;
}
break;
}
*pointer++ = (_TCHAR)ch;
}
*pointer = _T('\0');
/* Common return */
done:
_unlock_str2(0, stdin);
return(retval);
}