我需要你的帮助!C指针结构的深层副本
我想复制这样的结构:
typedef struct PackageObject_s {
long **vertex; // vertices
long num_vertex; // count of vertices
long objectType; //
REAL r; //
long bottom[3]; // bounding box bottom vector
long top[3]; // bounding box top vector
long *start; //
REAL coverage; //
} PackageObject __attribute__ ((aligned));
我尝试这样的:
static inline void PackageObject_copy(PackageObject *dst, const PackageObject *src) {
dst->num_vertex = src->num_vertex;
dst->objectType = src->objectType;
dst->r = src->r;
vec_assign3l(dst->bottom, src->bottom);
vec_assign3l(dst->top, src->top);
// TODO copy **vertex ???
dst->coverage = src->coverage;
dst->coverage = src->coverage;
}
我怎么能解决这个问题?
预先感谢您的帮助!
更新 - 我的deepcopy的的vertex
解决方案 - THX的所有帮助:
dst->vertex = (long *)malloc(dst->num_vertex * 3 * sizeof(long));
for (long i=0; i < src->num_vertex; i++) {
dst->vertex[i] = (long)malloc(3*sizeof(long));
memcpy(dst->vertex[i],src->vertex[i],3 * sizeof(long));
}
你需要复制**顶点?! – amrfaissal 2013-02-17 17:39:25
感谢您的所有答案(@Sparky,@Foon,@eznme)。我知道了:-)
'dst-> vertex =(long *)malloc(dst-> num_vertex * 3 * sizeof(long)); for(long i = 0; i < src-> num_vertex; i ++){dst-> vertex [i] =(long)malloc(3 * sizeof(long)); memcpy(dst-> vertex [i],src-> vertex [i],3 * sizeof(long)); }' – romi1013 2013-02-18 08:38:45