[memory] Fix read_cstring trying to read too far

[ValekoZ]

fix for #1055

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[hugsy]

I think this approach is not very optimal. I suggested several options but feel free to bring others as long as they don't impact the perf as much.

Also this needs to be tested.

[hugsy]

This needs to be tested to ensure no regression later on.
Also still curious about the perf impact, did you run any perf test?

[ValekoZ]

I didn't tested yet, and I'm thinking of cases where this fix doesn't work so I'll probably rework this PR soon

[hugsy]

I didn't tested yet, and I'm thinking of cases where this fix doesn't work so I'll probably rework this PR soon

Awesome!

If this can wait, we can collab on this more actively by end of July/August when things get quieter on my end. Otherwise I'll try to find time here and there to review what you've done.

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[Grazfather]

Looks good, comments might be nice to explain what you're doing with the masking

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[hugsy]

Some minor nits before merge, but the rest looks ok

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fixed