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Templatize basic_json constructor from json_ref #2034

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ArtemSarmini
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@ArtemSarmini ArtemSarmini commented Apr 12, 2020

Closes #1920. Closes #1912.

Compiles on experimental g++ 10.0.1 20200405.
Side effect is that json_ref is forward-declared in type_traits.hpp.


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Read the Contribution Guidelines for detailed information.

  • Changes are described in the pull request, or an existing issue is referenced.
  • The test suite compiles and runs without error.
  • Code coverage is 100%. Test cases can be added by editing the test suite.
  • The source code is amalgamated; that is, after making changes to the sources in the include/nlohmann directory, run make amalgamate to create the single-header file single_include/nlohmann/json.hpp. The whole process is described here.

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  • The C++11 support varies between different compilers and versions. Please note the list of supported compilers. Some compilers like GCC 4.7 (and earlier), Clang 3.3 (and earlier), or Microsoft Visual Studio 13.0 and earlier are known not to work due to missing or incomplete C++11 support. Please refrain from proposing changes that work around these compiler's limitations with #ifdefs or other means.
  • Specifically, I am aware of compilation problems with Microsoft Visual Studio (there even is an issue label for these kind of bugs). I understand that even in 2016, complete C++11 support isn't there yet. But please also understand that I do not want to drop features or uglify the code just to make Microsoft's sub-standard compiler happy. The past has shown that there are ways to express the functionality such that the code compiles with the most recent MSVC - unfortunately, this is not the main objective of the project.
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@ArtemSarmini ArtemSarmini requested a review from nlohmann as a code owner April 12, 2020 19:39
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Also solves #1912.

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Looks good to me.

@nlohmann nlohmann self-assigned this Apr 13, 2020
@nlohmann nlohmann added this to the Release 3.7.4 milestone Apr 13, 2020
@nlohmann nlohmann merged commit 84f19d6 into nlohmann:develop Apr 13, 2020
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Thanks!

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🔖 Release item

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  • ✨ New Feature
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Description


@ArtemSarmini ArtemSarmini deleted the gh-1920-gcc-10-incomplete-types branch April 13, 2020 12:45
geissonator added a commit to geissonator/meta-openembedded that referenced this pull request May 17, 2020
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.
kraj pushed a commit to YoeDistro/meta-openembedded that referenced this pull request May 17, 2020
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
halstead pushed a commit to openembedded/meta-openembedded that referenced this pull request May 17, 2020
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
paulgessinger added a commit to paulgessinger/acts that referenced this pull request May 19, 2020
There is a gcc10 compilation issue that got resolved in
[acts-project#2034](nlohmann/json#2034). There has not been
a tag since this was merged so I'm bumping the bundled version to the
develop branch immediately after that PR went in.
asalzburger pushed a commit to acts-project/acts that referenced this pull request May 19, 2020
There is a gcc10 compilation issue that got resolved in
[#2034](nlohmann/json#2034). There has not been
a tag since this was merged so I'm bumping the bundled version to the
develop branch immediately after that PR went in.
geissonator added a commit to openbmc/openbmc that referenced this pull request May 22, 2020
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.

Change-Id: I92f641bf4859708fbf78d78448e16c39577a2e39
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
halstead pushed a commit to openembedded/meta-openembedded that referenced this pull request Jun 3, 2020
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 12b707c)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
iipeace pushed a commit to iipeace/meta-openembedded that referenced this pull request Jun 16, 2020
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
paulgessinger added a commit to paulgessinger/acts that referenced this pull request Jul 13, 2020
There is a gcc10 compilation issue that got resolved in
[acts-project#2034](nlohmann/json#2034). There has not been
a tag since this was merged so I'm bumping the bundled version to the
develop branch immediately after that PR went in.
billpittman pushed a commit to billpittman/meta-openembedded that referenced this pull request Apr 26, 2021
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
(cherry picked from commit 12b707c)
Signed-off-by: Armin Kuster <akuster808@gmail.com>
daregit pushed a commit to daregit/yocto-combined that referenced this pull request May 22, 2024
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
daregit pushed a commit to daregit/yocto-combined that referenced this pull request May 22, 2024
The following issue and PR describe an issue with nlohmann-json and
GCC10.

nlohmann/json#1920
nlohmann/json#2034

Confirmed that this fixed the issue seen in OpenBMC when pulling in the
latest upstream meta-openembedded.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
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GCC 10 tests build failure Incomplete types reported by (experimental) GCC10
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