TEST repository for https://forge.sourceware.org/ experimenting.
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| Filename | Latest commit message | Latest commit date |
|---|---|---|
256060380cThis change makes the check_dynamic_spec precondition checks slightly faster to compile, and avoids those checks entirely for the common cases of calling check_dynamic_spec_integral or check_dynamic_spec_string. Instead of checking for unique types by keeping counts in an array and looping over that array, we can just keep a sum of how many valid types are present, and check that it equals the total number of types in the pack. The diagnostic is slightly worse now, because there's only a single "invalid template argument types" string that appears in the output, where previously we had either "non-unique template argument type" or "disallowed template argument type", depending on the failure mode. Given that most users will never use this function directly, and probably won't use invalid types anyway, the inferior diagnostic seems acceptable. libstdc++-v3/ChangeLog: * include/std/format (basic_format_parse_context::__once): New variable template. (basic_format_parse_context::__valid_types_for_check_dynamic_spec): New function template for checking argument types. (basic_format_parse_context::__check_dynamic_spec): New function template to implement the common check_dynamic_spec logic. (basic_format_parse_context::check_dynamic_spec_integral): Call __check_dynamic_spec instead of check_dynamic_spec. (basic_format_parse_context::check_dynamic_spec_string): Likewise. Use _CharT instead of char_type consistently. (basic_format_parse_context::check_dynamic_spec): Use __valid_types_for_check_dynamic_spec for precondition checks and call __check_dynamic_spec for checking the arg id. * testsuite/std/format/parse_ctx_neg.cc: Adjust expected errors. Reviewed-by: Tomasz Kamiński <tkaminsk@redhat.com> |
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