Package: g++-10 Version: 10.2.1-6 Severity: important X-Debbugs-Cc: um4...@mutluit.com
Dear Maintainer, the value std::regex_constants::multiline is supposed to be present in C++17 and later (cf. for example https://en.cppreference.com/w/cpp/regex/basic_regex/constants ), but actually it's missing in this compiler version (which supports C++17 as well even C++20). Compiler switches used: OPTS="-Wall -Wextra -W -Wformat -pedantic -pedantic-errors -std=gnu++20 -frecord-gcc-switches" g++ -g $OPTS blahfoo.cpp -lm -lssl -lcrypto -lz The compilation error: " blahfoo.cpp:5122:59: error: ‘multiline’ is not a member of ‘std::regex_constants’ 5122 | if (sOpt == "multiline") { f |= regex_constants::multiline; continue; } | ^~~~~~~~~ Command exited with non-zero status 1 " $ g++ --version g++ (Debian 10.2.1-6) 10.2.1 20210110 Expectation: Since this compiler version supports C++17 (and even C++20), then it should have the above said missing C++17 constant defined. -- System Information: Debian Release: 11.9 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.1.0-0.deb11.11-amd64 (SMP w/4 CPU threads; PREEMPT) Kernel taint flags: TAINT_WARN Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages g++-10 depends on: ii gcc-10 10.2.1-6 ii gcc-10-base 10.2.1-6 ii libc6 2.31-13+deb11u6 ii libgmp10 2:6.2.1+dfsg-1+deb11u1 ii libisl23 0.23-1 ii libmpc3 1.2.0-1 ii libmpfr6 4.1.0-3 ii libstdc++-10-dev 10.2.1-6 ii libzstd1 1.4.8+dfsg-2.1 ii zlib1g 1:1.2.11.dfsg-2+deb11u2 g++-10 recommends no packages. Versions of packages g++-10 suggests: pn g++-10-multilib <none> pn gcc-10-doc <none> -- no debconf information
