[bug #57515] node.cpp: Warning caused by "-Wdeprecated-copy"

[Bjarni Ingi Gislason]

URL:
  <https://savannah.gnu.org/bugs/?57515>

                 Summary: node.cpp: Warning caused by "-Wdeprecated-copy"
                 Project: GNU troff
            Submitted by: bjarniig
            Submitted on: Thu 02 Jan 2020 01:09:50 AM UTC
                Category: Core
                Severity: 3 - Normal
              Item Group: Build/Installation
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:



Subject: node.cpp: Warning caused by "-Wdeprecated-copy"

  The "-Wdeprecated-copy" (gcc version >= 9) is included in the
"-Wextra".

  Configuration of "groff" with:

CC='/usr/bin/gcc' # (Debian 9.2.1-21) 9.2.1 20191130

CFLAGS="\
-Wall -Wextra -Wformat=2 -Wmissing-prototypes \
-Wold-style-definition -Wstrict-prototypes -Wstringop-overflow=4 \
-Wold-style-declaration -Wshadow=global \
-fstack-protector-strong -fno-common -funsigned-char \
-fvar-tracking-assignments  \
-fstack-clash-protection \
-ftrapv \
-std=c11 -pedantic -D_FORTIFY_SOURCE=2  \
"
CXXFLAGS="\
-Wall -Wextra -Wformat=2   \
-fstack-protector-strong -fno-common -funsigned-char  \
-std=c++14 \
"
LDFLAGS="-fsanitize=undefined" # -fsanitize=address"

  make ...: Warnings:

[...]
  CXX      src/roff/troff/node.o
../src/roff/troff/node.cpp: In copy constructor 'tfont_spec::tfont_spec(const
tfont_spec&)':
../src/roff/troff/node.cpp:181:48: warning: implicitly-declared 'constexpr
tfont_spec& tfont_spec::operator=(const tfont_spec&)' is deprecated
[-Wdeprecated-copy]
  181 |   tfont_spec(const tfont_spec &spec) { *this = spec; }
      |                                                ^~~~
../src/roff/troff/node.cpp:181:3: note: because 'tfont_spec' has user-provided
'tfont_spec::tfont_spec(const tfont_spec&)'
  181 |   tfont_spec(const tfont_spec &spec) { *this = spec; }
      |   ^~~~~~~~~~
[...]





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