add an internal header for __rw::__rw_get_stdio_fmat()
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Key: STDCXX-548
URL: https://issues.apache.org/jira/browse/STDCXX-548
Project: C++ Standard Library
Issue Type: Improvement
Components: Build
Affects Versions: 4.1.4, 4.1.3, 4.1.2
Environment: All.
Reporter: Martin Sebor
Priority: Minor
Fix For: 4.2.1
The __rw::__rw_get_stdio_fmat() function (and perhaps some others) defined in
src/punct.cpp and declared as well as used in both num_get.cpp and num_put.cpp.
Changing the function signature involves changing three places instead of two,
which is error-prone. See http://svn.apache.org/viewvc?rev=574738&view=rev and
http://svn.apache.org/viewvc?rev=574422&view=rev for an example where this
caused breakage.
The function (and any other such examples) should be declared in a header to
prevent such incidents.
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