3c33dccf7c
* guint32_to_str_buf() -> uint32_to_str_buf() * guint64_to_str_buf() -> uint64_to_str_buf() * guint64_to_gdouble() -> uint64_to_double() * gdouble_to_guint64() -> double_to_uint64() * get_nonzero_guint32() -> get_nonzero_uint32() * get_guint32() -> get_uint32() * guint8_to_hex() -> uint8_to_hex()
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/* type_util.c
|
|
* Types utility routines
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <glib.h>
|
|
|
|
#include "type_util.h"
|
|
|
|
/*
|
|
* uint64_t to double conversions taken from gstutils.c of GStreamer project
|
|
*
|
|
* GStreamer
|
|
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
|
|
* 2000 Wim Taymans <wtay@chello.be>
|
|
* 2002 Thomas Vander Stichele <thomas@apestaart.org>
|
|
*
|
|
* gstutils.h: Header for various utility functions
|
|
*
|
|
* GNU GPL v2
|
|
*
|
|
*/
|
|
|
|
/* work around error C2520: conversion from unsigned __int64 to double
|
|
* not implemented, use signed __int64
|
|
*
|
|
* These are implemented as functions because on some platforms a 64bit int to
|
|
* double conversion is not defined/implemented.
|
|
*/
|
|
|
|
double
|
|
type_util_uint64_to_double(uint64_t value)
|
|
{
|
|
if (value & UINT64_C (0x8000000000000000))
|
|
return (double) ((int64_t) value) + (double) 18446744073709551616.;
|
|
else
|
|
return (double) ((int64_t) value);
|
|
}
|
|
|
|
uint64_t
|
|
type_util_double_to_uint64(double value)
|
|
{
|
|
if (value < (double) 9223372036854775808.) /* 1 << 63 */
|
|
return ((uint64_t) ((int64_t) value));
|
|
|
|
value -= (double) 18446744073709551616.;
|
|
return ((uint64_t) ((int64_t) value));
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 2
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=2 tabstop=8 expandtab:
|
|
* :indentSize=2:tabSize=8:noTabs=true:
|
|
*/
|