问将3D数组实现为指向可变长度数组的指针

EN

#include <stdio.h>
#include <stdlib.h>

int main( int argc, char *argv[] ) {

    size_t  ii, jj, kk,
            Nx, Ny, Nz;

    Nx  = 2;
    Ny  = 3;
    Nz  = 4;

    // initialize 3D array as pointer to a variable length array
    double (*arr3d)[Ny][Nz] = calloc(Nx, sizeof *arr3d);

    for( ii=0 ; ii<Nx ; ++ii )
        for( jj=0 ; jj<Ny ; ++jj )
            for( kk=0 ; kk<Nz ; ++kk )
                printf( "arr3d[%ld,%ld,%ld] = %f, address = %p\n",
                    ii, jj, kk, arr3d[ii][jj][kk], &arr3d[ii][jj][kk] );

    free(arr3d);
    return 0;

}

int doSomething( size_t dim1, size_t dim2, size_t dim3, double arr3d[dim1][dim2][dim3] );

doSomething( Nx, Ny, Nz, arr3d );