Hello, "Joerg Sonnenberger" <jo...@netbsd.org> wrote: |Module Name: src |Committed By: joerg |Date: Mon Apr 14 18:18:58 UTC 2014 | |Modified Files: | src/common/lib/libc/string: bcopy.c | |Log Message: |Using bcopy/memcpy with NULL arguments is valid as long as the size is |also 0.
This is great interface design and easy to use, but it is not specified in neither POSIX nor ISO C (11). And worse i'm afraid that the ISO C people would actively veto this very behaviour given that wmemcpy(3) is standardized as If n is zero, the application shall ensure that ws1 and ws2 are valid pointers, and the function shall copy zero wide characters. --steffen
