Write / Read C Doubles in IEEE 754 Interchange Format

Question

So, I am serializing the C data structure for cross-platform use, and I want to make sure that I write my floating-point numbers in a cross-platform manner.

I planned to just do

 char * pos;
 /*...*/
 *((double*) pos) = dataStructureInstance->fieldWithOfTypeDouble;
 pos += sizeof(double);

But I was not sure that the bytes would be written in an array char *in the IEEE 754 interchange format. I was bitten by cross-platform questions before (endian-ness and whatnot). Is there anything I need to do in doubleorder to receive bytes in an exchange format?

Answer 1

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