Source code of Windows XP (NT5)
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/*++
Copyright (c) 1991 Microsoft Corporation
Module Name:
ASCII.c
Abstract:
This module contains code for Remote Admin Protocol use.
Author:
David Treadwell (davidtr) 07-Jan-1991
Environment:
Portable to any flat, 32-bit environment. (Uses Win32 typedefs.)
Revision History:
27-Feb-1991 JohnRo
Converted from Xs routines to Rap routines.
14-Apr-1991 JohnRo
Reduce recompiles.
17-Apr-1991 JohnRo
Make it clear that "input" pointer is updated.
19-Aug-1991 JohnRo
Improve UNICODE handling.
Reduce recompiles.
07-Sep-1991 JohnRo
Use DESC_DIGIT_TO_NUM(). Made changes suggested by PC-LINT.
--*/
// These must be included first:
#include <windef.h> // IN, LPDWORD, NULL, OPTIONAL, DWORD, etc.
#include <lmcons.h> // NET_API_STATUS
// These may be included in any order:
#include <rap.h> // My prototype, LPDESC, DESC_CHAR_IS_DIGIT().
DWORD
RapAsciiToDecimal (
IN OUT LPDESC *Number
)
/*++
Routine Description:
This routine converts an ASCII string to decimal and updates the
input pointer to point the last character of the number. The string is
parm of a descriptor.
Arguments:
Number - points to a LPDESC pointing to a number in ASCII format. The
pointer is updated to point to the next location after the number.
Return Value:
The decimal value of the string.
--*/
{
LPDESC s;
DWORD actualNumber = 0;
//
// Walk through the number, multiplying the current value by ten to
// update place, and adding the next digit.
//
for ( s = *Number; DESC_CHAR_IS_DIGIT( *s ); s++ ) {
actualNumber = actualNumber * 10 + DESC_DIGIT_TO_NUM( *s );
}
//
// Set up the output pointer to point to the character after the last
// digit of the number.
//
*Number = s;
return actualNumber;
} // RapAsciiToDecimal