Attempt to write to read-only object

[iesiyok]

Thanks for this great tool,

I am wondering why it is not allowed to copy G1, G2 or GT objects. For example, if I attempt to copy one G1 object to another G1 object and they have the precomputed values (mtable), It will give me "Attempt to write to read-only object" error. When, I try to put a G1 in a c++ struct, that's the same error I get.

Thanks for your helps in advance,

[mcarrickscott]

Its a while since I wrote this. But I guess that if a value is precomputed on, then any change in that value means that the precomputed table is no longer correct.

So don't precompute on it unless it is to remain fixed thereafter.

But it should be possible to copy an element if it has not been precomputed on. From pairing_3.h

G1& operator=(const G1& w) { if (mtable==NULL) g=w.g; else read_only_error(); return *this; }

Mike

On Wed, Aug 8, 2018 at 12:07 PM Ilkan Esiyok notifications@github.com wrote:

Thanks for this great tool,

I am wondering why it is not allowed to copy G1, G2 or GT objects. For example, if I attempt to copy one G1 object to another G1 object and they have the precomputed values (mtable), It will give me "Attempt to write to read-only object" error. When, I try to put a G1 in a c++ struct, that's the same error I get.

Thanks for your helps in advance,

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