Annex C (informative) Compatibility [diff]

C.2 C++ and ISO C++ 2003 [diff.cpp03]

C.2.15 Clause [numerics]: numerics library [diff.cpp03.numerics]

Change: Specified representation of complex numbers.
Rationale: Compatibility with C99.
Effect on original feature: Valid C++ 2003 code that uses implementation-specific knowledge about the binary representation of the required template specializations of std​::​complex may not be compatible with this International Standard.