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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/110653] Support std::stoi etc. without C99 APIs
Date: Thu, 13 Jul 2023 09:43:55 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110653

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2023-07-13
     Ever confirmed|0                           |1
           Assignee|unassigned at gcc dot gnu.org      |redi at gcc dot gnu=
.org

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
std::stoi, std::stol and stoul only depend on strtol and strtoul which are =
in
C89, so don't need to be guarded by _GLIBCXX_USE_C99_STDLIB

std::stoll and std::stoull can be implemented without C99 strtoll and strto=
ull
if sizeof(long) =3D=3D sizeof(long long).

std::stod only depends on strtod which is in C89.

std::stold can be implemented without C99 strtold if DBL_MANT_DIG =3D=3D
LDBL_MANT_DIG.=