Add DataType alias #10547
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Add DataType alias #10547
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ezyang
requested review from
apaszke,
colesbury,
gchanan,
soumith and
zdevito
as code owners
Summary:
Have you ever written an operator<< overload in the caffe2 namespace
in a core Caffe2 header, and then been stunned when some completely
unrelated code started breaking? This diff fixes this problem!
The problem looks like this:
1. You're building against a really old version of glog (think 0.3.2,
or something like that)
2. This version of glog defines operator<< overloads for std containers
in the global namespace
3. You add a new overload in your current namespace (e.g., caffe2).
Congratulations: this overload is *preferentially* chosen over
the global namespace one for all calls to << in that namespace.
And since it doesn't actually have std::vector overloads, unrelated
Caffe2 code breaks.
Newer versions of glog have a fix for this: they have the line:
namespace std { using ::operator<<; }
in their header. So let's help old versions of glog out and do this ourselves.
In our new world order, operator<< overloads defined in the global namespace
won't work (unless they're for std containers, which work because of ADL).
So this diff also moves all those overloads to the correct namespace.
Differential Revision: D9344540
fbshipit-source-id: 1f3d5c69ccf0fd2003db6f7737b76914dc4dcdaa
Summary: Pull Request resolved: pytorch#10547 Differential Revision: D9346040 fbshipit-source-id: 14d5cf3480c2a87a8feb36a17a28ef8b1c8bb228
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Summary: Pull Request resolved: pytorch/pytorch#10547 Reviewed By: soumith Differential Revision: D9346040 fbshipit-source-id: 1069a44182ccff68b1694086c8b709ba2046b22b
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Differential Revision: D9346040