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e9ccbe0145
* update example directory
* modify some compile error.
* update with clang-format
* update
* update
* add_definitions("../include/json")
# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
#
# Date: Wed Jul 10 21:26:16 2019 +0800
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# On branch code_example
# Your branch is up-to-date with 'origin/code_example'.
#
# Changes to be committed:
# modified: example/CMakeLists.txt
#
* change CMakeLists.txt
* update streamWrite.cpp
* update
* Update readFromStream.cpp
* fix typo
14 lines
1.1 KiB
Markdown
14 lines
1.1 KiB
Markdown
***NOTE***
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If you get linker errors about undefined references to symbols that involve types in the `std::__cxx11` namespace or the tag
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`[abi:cxx11]` then it probably indicates that you are trying to link together object files that were compiled with different
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values for the _GLIBCXX_USE_CXX11_ABI marco. This commonly happens when linking to a third-party library that was compiled with
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an older version of GCC. If the third-party library cannot be rebuilt with the new ABI, then you need to recompile your code with
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the old ABI,just like:
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**g++ stringWrite.cpp -ljsoncpp -std=c++11 -D_GLIBCXX_USE_CXX11_ABI=0 -o stringWrite**
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Not all of uses of the new ABI will cause changes in symbol names, for example a class with a `std::string` member variable will
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have the same mangled name whether compiled with the older or new ABI. In order to detect such problems, the new types and functions
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are annotated with the abi_tag attribute, allowing the compiler to warn about potential ABI incompatibilities in code using them.
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Those warnings can be enabled with the `-Wabi-tag` option.
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