Antonio Sanchez 045c0609b5 Check existence of BSD random before use.
`TensorRandom` currently relies on BSD `random()`, which is not always
available.  The [linux manpage](https://man7.org/linux/man-pages/man3/srandom.3.html)
gives the glibc condition:
```
_XOPEN_SOURCE >= 500
               || /* Glibc since 2.19: */ _DEFAULT_SOURCE
	       || /* Glibc <= 2.19: */ _SVID_SOURCE ||  _BSD_SOURCE
```
In particular, this was failing to compile for MinGW via msys2. If not
available, we fall back to using `rand()`.
2021-04-22 20:42:12 +00:00
2021-04-21 06:53:32 +00:00
2018-03-11 10:01:44 -04:00
2021-04-22 18:45:19 +00:00
2021-04-22 18:45:19 +00:00
2012-07-15 10:20:59 -04:00

Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related algorithms.

For more information go to http://eigen.tuxfamily.org/.

For pull request, bug reports, and feature requests, go to https://gitlab.com/libeigen/eigen.

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