GCC Decimal128 class

[Ming Cheng]

Hi GCC,

Seems Janis is not at IBM. Wondering someone from GCC can help my question?

Thanks
Ming.

From: Ming Cheng
Sent: Monday, January 22, 2024 3:18 PM
To: janis187@us.ibm.com
Subject: GCC Decimal128 class

Hi Janis Johnson,

I want to test GCC Decimal128 class.

This is my code:

#include <stdio.h>
#include <cstdlib>
#include <vector>
#include <algorithm>
#include <ctime>
#include <random>
#include <string>
#include <fstream>
#include <fenv.h>
#include "decimal/decimal.h"

int main (void)
{
    std::decimal::decimal128 d128{};
    return 0;
}

When I compile by c++23 (/opt/rh/gcc-toolset-13/root/bin/g++ -rdynamic -std=c++23  -O2 ......)
I got this error:

/opt/rh/gcc-toolset-13/root/usr/include/c++/13/decimal/decimal.h:46:10: error: 'decimal32' does not name a type
   46 |   inline decimal32::decimal32(decimal64 __r)    : __val(__r.__getval()) {}

I checked /opt/rh/gcc-toolset-13/root/usr/include/c++/13/decimal/decimal.h and found this comments:

/** @file decimal/decimal.h
*  This is an internal header file, included by other library headers.
*  Do not attempt to use it directly. @headername{decimal}
*/

Wondering whether you can give some advice?

Thanks.
Ming Cheng

-----Original Message-----
From: LIU Hao via Gcc <gcc@gcc.gnu.org>
Sent: Tuesday, January 23, 2024 9:31 AM
To: Jan Beulich <jbeulich@suse.com>
Cc: binutils@sourceware.org; GCC Development <gcc@gcc.gnu.org>
Subject: Re: RFC: Formalization of the Intel assembly syntax (PR53929)

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