How to send array of double data type over network using socket?

Question

I want to send a structure which contains several double data type elements using network socket. Receivers can be of different architecture. What will be better optimized approach to do this except converting it to a string?

You open a socket, call connect() or bind() depending on whether it's the client or the server socket, and the use read() and write(), but be careful with endianness. — Iharob Al Asimi
– Iharob Al Asimi, Commented Mar 25, 2015 at 13:03
When sending double you need to take care of more issues than just endianness. Some info here: stackoverflow.com/questions/6084279/host-to-network-double — gmoniava
– gmoniava, Commented Mar 25, 2015 at 13:12
As @DrKoch recommended, JSON or something similar is worth looking into. — user5071535
– user5071535, Commented Jul 20, 2015 at 22:45

Community · Accepted Answer · 2017-05-23 11:51:10Z

1

On a socket connection exists nothing but raw bytes. So you have to do two things:

Convert your double into bytes in a way the receiver can understand. This is rather complicated for doubles see here
Invent some field separator which you send between the individual doubles.

After all it is a bad idea to reinvent the wheel. You could use some established format like XML or JSON.

edited May 23, 2017 at 11:51

CommunityBot

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answered Mar 25, 2015 at 13:18

DrKoch

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