HelenOS sources

_padd              60 uspace/lib/c/include/macros.h #define PADD32(n)  _padd(32, __LINE__, n)
_padd              61 uspace/lib/c/include/macros.h #define PADD16(n)  _padd(16, __LINE__, n)
_padd              62 uspace/lib/c/include/macros.h #define PADD8(n)   _padd(8, __LINE__, n)
_padd              60 uspace/lib/posix/include/libc/macros.h #define PADD32(n)  _padd(32, __LINE__, n)
_padd              61 uspace/lib/posix/include/libc/macros.h #define PADD16(n)  _padd(16, __LINE__, n)
_padd              62 uspace/lib/posix/include/libc/macros.h #define PADD8(n)   _padd(8, __LINE__, n)
HelenOS homepage, sources at GitHub