P99_APLAIN P99_ASUB P99_MAC_ARGS P99_MEMSET P99_MEMZERO P99_PZERO P99_TZERO

P99_PZERO #define P99_PZERO (   X,   N  )    (memset((X), 0, sizeof(X[0]) * N)) Zero out all bits in the object to which X points. X can be a pointer or an array T *A; T B[3]; PZERO(A, 29); PZERO(B, 2); Here the first call zeroes out 29 elements of type T starting at the memory to which A points. The second zeroes out the first two elements of the array B. This is a macro not a function, but nevertheless, X is evaluated only once. See also P99_MEMZERO for a macro that initializes to a default value that is guaranteed to correspond to the type. Remarks argument 0 maybe evaluated several times for its type but only once for its value Definition at line 64 of file p99_new.h.