[CLN-list] Bug in double_approx() for cl_RA on x86_64

[Igor Khavkine]

Hello. I've run into a bug in the following routine:

  src/float/dfloat/conv/cl_RA_to_double.cc : double_approx()

A test case is attached. It is supposed to print the rational number
2/3 as a string, a float, and a double. On any 32-bit machine I've
tried, it works perfectly. However, on 64-bit machines, I find that
the conversion to double generates a segmentation fault.

My version is cln-1.2.2. However, looking at the revision history of
the relevant file, I don't see what would have fixed this in 1.3.0, so
presumably the bug could still be there.

It'd be great if someone could look into this. Thanks.

Igor
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