mirror of
https://github.com/nlohmann/json.git
synced 2026-09-03 23:15:02 +00:00
Niels LohmannandClaude Opus 5
207db0f124
The GCC C++20 job builds with -Wnoexcept and -Werror, and the standard
library takes noexcept(c.begin()) and noexcept(c.end()) in ranges_base.h and
range_access.h. Forwarding to std::map without repeating its noexcept made
those expressions false, which the warning reports as an error:
error: noexcept-expression evaluates to 'false' because of a call to
no_key_compare_map<...>::begin() [-Werror=noexcept]
note: but ... does not throw; perhaps it should be declared 'noexcept'
Give the accessors the exception specification of what they forward to.
std::map declares begin, end, cbegin, cend, empty, size, max_size, and clear
noexcept, so the wrapper does too. swap is left alone: std::map's is only
conditionally noexcept, and nothing asks for it.
void_erase_map is unaffected because it still derives from std::map and
inherits accessors that already carry the specification.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018hxZxz8svM54c6ATEvXp5E
Signed-off-by: Niels Lohmann <mail@nlohmann.me>