[Bug libstdc++/110653] Support std::stoi etc. without C99 APIs

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110653

--- Comment #16 from Jonathan Wakely <redi at gcc dot gnu.org> ---
This should be fixed now, and you should see these in libstdc++.sum

PASS: 21_strings/basic_string/numeric_conversions/char/stod.cc (test for excess
errors)
PASS: 21_strings/basic_string/numeric_conversions/char/stod.cc execution test
PASS: 21_strings/basic_string/numeric_conversions/char/stof.cc (test for excess
errors)
PASS: 21_strings/basic_string/numeric_conversions/char/stof.cc execution test
PASS: 21_strings/basic_string/numeric_conversions/char/stoi.cc (test for excess
errors)
PASS: 21_strings/basic_string/numeric_conversions/char/stoi.cc execution test
PASS: 21_strings/basic_string/numeric_conversions/char/stol.cc (test for excess
errors)
PASS: 21_strings/basic_string/numeric_conversions/char/stol.cc execution test
PASS: 21_strings/basic_string/numeric_conversions/char/stold.cc (test for
excess errors)
PASS: 21_strings/basic_string/numeric_conversions/char/stold.cc execution test
PASS: 21_strings/basic_string/numeric_conversions/char/stoll.cc (test for
excess errors)
PASS: 21_strings/basic_string/numeric_conversions/char/stoll.cc execution test
PASS: 21_strings/basic_string/numeric_conversions/char/stoul.cc (test for
excess errors)
PASS: 21_strings/basic_string/numeric_conversions/char/stoul.cc execution test

The char/stoll.cc and char/stoull.cc tests would actually pass for hpux11.11 as
well, but they have the { dg-require-string-conversions "" } check which fails.