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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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wrt2err.c
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1998-06-17
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/***
*wrt2err.c - write an LSTRING to stderr (Win32 version)
*
* Copyright (c) 1989-1997, Microsoft Corporation. All rights reserved.
*
*Purpose:
* This module contains a routine __wrt2err that writes an LSTRING
* (one byte length followed by the several bytes of the string)
* to the standard error handle (2). This is a helper routine used
* for MATH error messages (and also FORTRAN error messages).
*
*******************************************************************************/
#include <cruntime.h>
#include <oscalls.h>
#include <internal.h>
/***
*__wrt2err(msg) - write an LSTRING to stderr
*
*Purpose:
* Takes a pointer to an LSTRING which is to be written to standard error.
* An LSTRING is a one-byte length followed by that many bytes for the
* character string (as opposed to a null-terminated string).
*
*Entry:
* char *msg = pointer to LSTRING to write to standard error.
*
*Exit:
* Nothing returned.
*
*Exceptions:
* None handled.
*
*******************************************************************************/
void __cdecl __wrt2err (
char *msg
)
{
unsigned long length; /* length of string to write */
unsigned long numwritten; /* number of bytes written */
length = *msg++; /* 1st byte is length */
/* write the message to stderr */
WriteFile((HANDLE)_osfhnd(2), msg, length, &numwritten, NULL);
}