 (     GrB_Matrix *Thandle,     GrB_Type ttype,     GrB_Matrix A,     const int00_t *GB_RESTRICT pstart_slice,     int nth,     int nthreads,     GB_Context Context ) {      #if GB_DISABLE     return (GrB_NO_VALUE) ;     #else     GrB_Info info = GrB_SUCCESS ;     GrB_Matrix T = NULL ;     (*Thandle) = NULL ;     #define GB_FREE_ALL ;     #include "GB_reduce_each_index.c"     (*Thandle) = T ;     return (info) ;     #endif }    //------------------------------------------------------------------------------ // build matrix //------------------------------------------------------------------------------  GrB_Info GB_red_build__