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From: "Burakov, Anatoly" <anatoly.burakov@intel.com>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: <dev@dpdk.org>
Subject: Re: [PATCH v12 2/3] cmdline: add floating point support
Date: Fri, 27 Feb 2026 12:00:53 +0100	[thread overview]
Message-ID: <5f6daf58-7fe5-4975-80c2-51d08d6eea1d@intel.com> (raw)
In-Reply-To: <20260226101935.490f172c@phoenix.local>

On 2/26/2026 7:19 PM, Stephen Hemminger wrote:
> On Thu, 26 Feb 2026 16:44:49 +0000
> Anatoly Burakov <anatoly.burakov@intel.com> wrote:
> 
>> +	if (type == RTE_FLOAT_SINGLE)
>> +		dres = (double)strtof(srcbuf, &end);
>> +	else if (type == RTE_FLOAT_DOUBLE)
>> +		dres = strtod(srcbuf, &end);
>> +	else
>> +		return -1;
>> +
> 
> You could use strtod for both.
> The conversion from double to float could happen in caller.

I did have that previously, but parsing a float as double then 
converting it to float yields slightly different result than parsing it 
as a float directly. Unit tests expose the difference.

-- 
Thanks,
Anatoly

  reply	other threads:[~2026-02-27 11:01 UTC|newest]

Thread overview: 61+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-05-02 12:27 [PATCH v1 1/1] app/testpmd: add sleep command Anatoly Burakov
2025-05-02 12:37 ` Bruce Richardson
2025-05-02 14:35   ` Burakov, Anatoly
2025-05-02 14:43     ` Bruce Richardson
2025-05-02 15:33       ` Morten Brørup
2025-05-02 15:42 ` Stephen Hemminger
2025-05-06 12:36   ` Burakov, Anatoly
2025-05-06 13:08 ` [PATCH v2 1/2] cmdline: add floating point support Anatoly Burakov
2025-05-06 13:08   ` [PATCH v2 2/2] app/testpmd: add sleep command Anatoly Burakov
2025-05-06 13:38   ` [PATCH v2 1/2] cmdline: add floating point support Bruce Richardson
2025-05-07  9:02     ` Burakov, Anatoly
2025-05-07  9:50 ` [PATCH v3 " Anatoly Burakov
2025-05-07  9:50   ` [PATCH v3 2/2] app/testpmd: add sleep command Anatoly Burakov
2025-05-07  9:53   ` [PATCH v3 1/2] cmdline: add floating point support Burakov, Anatoly
2025-05-07 10:01 ` [PATCH v4 " Anatoly Burakov
2025-05-07 10:01   ` [PATCH v4 2/2] app/testpmd: add sleep command Anatoly Burakov
2025-05-07 10:35   ` [PATCH v4 1/2] cmdline: add floating point support Konstantin Ananyev
2025-05-07 11:06     ` Burakov, Anatoly
2025-05-07 12:24       ` Konstantin Ananyev
2025-05-07 14:06         ` Burakov, Anatoly
2025-05-07 15:22 ` [PATCH v5 1/3] cmdline: use C standard library as number parser Anatoly Burakov
2025-05-07 15:22   ` [PATCH v5 2/3] cmdline: add floating point support Anatoly Burakov
2025-05-20 16:19     ` Stephen Hemminger
2025-05-21 12:17       ` Burakov, Anatoly
2025-05-21 14:05     ` Stephen Hemminger
2025-05-23 10:21       ` Burakov, Anatoly
2025-05-23 14:47         ` Stephen Hemminger
2025-05-07 15:22   ` [PATCH v5 3/3] app/testpmd: add sleep command Anatoly Burakov
2025-05-08  7:27   ` [PATCH v5 1/3] cmdline: use C standard library as number parser Bruce Richardson
2025-05-08  8:35     ` Burakov, Anatoly
2025-05-08  9:53 ` [PATCH v6 " Anatoly Burakov
2025-05-08  9:53   ` [PATCH v6 2/3] cmdline: add floating point support Anatoly Burakov
2025-05-08  9:53   ` [PATCH v6 3/3] app/testpmd: add sleep command Anatoly Burakov
2025-05-08 10:01 ` [PATCH v7 1/3] cmdline: use C standard library as number parser Anatoly Burakov
2025-05-08 10:01   ` [PATCH v7 2/3] cmdline: add floating point support Anatoly Burakov
2025-05-08 10:09     ` Burakov, Anatoly
2025-05-08 10:01   ` [PATCH v7 3/3] app/testpmd: add sleep command Anatoly Burakov
2025-05-08 13:16 ` [PATCH v8 1/3] cmdline: use C standard library as number parser Anatoly Burakov
2025-05-08 13:16   ` [PATCH v8 2/3] cmdline: add floating point support Anatoly Burakov
2025-05-08 13:16   ` [PATCH v8 3/3] app/testpmd: add sleep command Anatoly Burakov
2025-05-09 13:02   ` [PATCH v8 1/3] cmdline: use C standard library as number parser Burakov, Anatoly
2025-05-09 13:08     ` Burakov, Anatoly
2025-05-09 13:27       ` Burakov, Anatoly
2025-05-09 13:39 ` [PATCH v9 " Anatoly Burakov
2025-05-09 13:39   ` [PATCH v9 2/3] cmdline: add floating point support Anatoly Burakov
2025-05-09 13:39   ` [PATCH v9 3/3] app/testpmd: add sleep command Anatoly Burakov
2025-05-09 13:42   ` [PATCH v9 1/3] cmdline: use C standard library as number parser Burakov, Anatoly
2025-05-09 14:41 ` [PATCH v10 " Anatoly Burakov
2025-05-09 14:41   ` [PATCH v10 2/3] cmdline: add floating point support Anatoly Burakov
2025-05-09 14:41   ` [PATCH v10 3/3] app/testpmd: add sleep command Anatoly Burakov
2026-02-26 16:44 ` [PATCH v12 1/3] cmdline: use C standard library as number parser Anatoly Burakov
2026-02-26 16:44   ` [PATCH v12 2/3] cmdline: add floating point support Anatoly Burakov
2026-02-26 18:16     ` Bruce Richardson
2026-02-26 18:19     ` Stephen Hemminger
2026-02-27 11:00       ` Burakov, Anatoly [this message]
2026-04-05 16:22     ` Stephen Hemminger
2026-02-26 16:44   ` [PATCH v12 3/3] app/testpmd: add sleep command Anatoly Burakov
2026-02-26 18:19     ` Bruce Richardson
2026-04-05 16:48     ` Stephen Hemminger
2026-02-26 17:23   ` [PATCH v12 1/3] cmdline: use C standard library as number parser Bruce Richardson
2026-02-27 10:46     ` Burakov, Anatoly

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