Order of structure members in memory

[Christopher Benson-Manica]

Are the members of a struct guaranteed to have ascending memory
addresses?

 

[Ben Pfaff]

Are the members of a struct guaranteed to have ascending memory
addresses?

Yes.

 

[Jack Klein]

Are the members of a struct guaranteed to have ascending memory
addresses?

Yes, always in C.

 

[Christopher Benson-Manica]

Yes, always in C.

Just for my edification, what is the chapter and verse? Thanks...

 

[Eric Amick]

Just for my edification, what is the chapter and verse? Thanks...

In C99, it's 6.7.2.1, paragraph 13.

 

[Derrick Coetzee]

Just for my edification, what is the chapter and verse? Thanks...

In C90, it's 6.5.2.1, verse 11:

"Within a structure object, the non-bit-field members and the units in
which bit-fields reside have addresses that increase in the order in
which they are declared."

This is a bit vague, since you don't technically declare the units
bit-fields reside in (but rather the bit-fields that go in them, but
adjacent bits fields do go into each unit). Bit-field members within a
unit are in implementation-defined order.