摘要: If the source and destination overlap, memcpy does not ensure that the original source bytes in the overlapping region are copied before being overwritten. Use memmove to handle overlapping regions
如果原始资料source和目的单元格destination（的地址）重复了。在重复区域的原始source的字节被覆盖以前，memcpy不能保证这些区域被拷贝。使用memove来处理重复的区域。  阅读全文