for P99_BLK_MARK P99_BLOCK_DOCUMENT P99_CASERANGE P99_DO P99_FORALL P99_GUARDED_BLOCK P99_HANDLE_ERRNO P99_INVARIANT P99_MARK P99_NOP P99_PARALLEL_DO P99_PARALLEL_FOR P99_PARALLEL_FORALL P99_PROTECT P99_PROTECTED_BLOCK P99_SIMPLE_BLOCKS P99_UNCASE p99_unwind P99_UNWIND p99_unwind_code P99_UNWIND_PROTECT P99_UNWIND_RETURN

P99_FORALL #define P99_FORALL (   NAME,   ...  )    P00_FORALL(P99_NARG(__VA_ARGS__), NAME, __VA_ARGS__) A multi-index for loop. Given the names of N identifiers after NAME, NAME must correspond to an array of lengths with dimension at least N. size_t NAME[N]; For N = 3 this could e.g be size_t const D[] = { 3, 4, 7 }; Then, the macro in the following P99_FORALL(D, i0, i1, i2) { A[i0][i1][i2] *= B[i0][i1][i2] } would expand to something similar to for (size_t i0 = 0; i0 < D[0]; ++i0) for (size_t i1 = 0; i1 < D[1]; ++i1) for (size_t i2 = 0; i2 < D[2]; ++i2) { A[i0][i1][i2] *= B[i0][i1][i2] } only that the bounds of the loops (involving D[0], D[1] and D[2]) are fixed once when entering this construct the loop variables i0, i1 and i2 are not modifiable within the block See also P99_PARALLEL_FORALL for a variant that uses OpenMp to parallelize the loop. P99_DO for a simple fortran like iteration P99_CDIM for a macro that computes the absolute position of an index N-tuple in a multi-dimensional array. Warning argument 0 may be evaluated multiple times Examples test-p99-pow.c. Definition at line 956 of file p99_for.h.