1 #include "first.h" 2 3 #include "vector.h" 4 #include "base.h" 5 6 void *vector_realloc(void *data, size_t elem_size, size_t size, size_t used) { 7 const size_t total_size = elem_size * size; 8 const size_t used_size = elem_size * used; 9 force_assert(size <= SIZE_MAX / elem_size); 10 data = realloc(data, total_size); 11 force_assert(NULL != data); 12 13 /* clear new memory */ 14 memset(((char*)data) + used_size, 0, total_size - used_size); 15 16 return data; 17 } 18