realloc函数是标准C库中的一个动态内存分配函数。它的全名是“reallocate memory”,即“重新分配内存”。该函数可以增大或减小之前通过malloc、calloc或realloc函数分配的内存大小。它的函数原型定义在stdlib.h头文件中,并有如下形式: void *realloc(void *ptr, size_t size); 其中,ptr指向需要
realloc(reallocate)函数用于重新分配之前通过 malloc 或 calloc 分配的内存块的大小。其语法如下: void*realloc(void*ptr,size_tsize); 1. 其中ptr 是之前分配的内存块的指针,size 是要重新分配的字节数。realloc 返回一个指向重新分配内存块的指针,如果分配失败,则返回 NULL。注意,realloc 可能会将已分配内存的内...
问用realloc实现C语言中的动态内存分配ENmalloc函数 原型：extern void* malloc(unsigned int size)； ...
T*allocate(std::size_tsize);T*reallocate(T*p,std::size_told_size,std::size_tnew_size);void...
T*allocate(std::size_tsize);T*reallocate(T*p,std::size_told_size,std::size_tnew_size);void...
Reallocate memory block The size of the memory block pointed to by theptrparameter is changed to thesizebytes, expanding or reducing the amount of memory available in the block. The function may move the memory block to a new location, in which case the new location is returned. The content...
当我用realloc重新调整它的大小时,gdb不会显示任何错误,但是,如果我再次尝试调用resize函数,gdb将显示以下错误: warning: Invalid Address specified toRtlReAllocateHeap( 003E 浏览1提问于2010-02-06得票数 1 回答已采纳 1回答 重新分配时lua的callin‘c崩溃 、、、 我在那个for循环中得到了一个疯狂的错误matr[...
函数原型:Reallocate memory blocks. 参数:memblock: Pointer to previously allocated memory block(将要修改的开辟内存块的地址) size: New size in bytes(调整后的内存块的大小,新的大小) 返回 值:同malloc和calloc,如果调整失败,返回NULL,否则返回重新分配内存块的空间地址(该地址有可能会发生变化) ...
Reallocate memory block Changes the size of the memory block pointed to byptr. The function may move the memory block to a new location (whose address is returned by the function). The content of the memory block is preserved up to the lesser of the new and old sizes, even if the bloc...
void* realloc (void* ptr, size_t size); Reallocate memory block Changes the size of the memory block pointed to byptr. The function may move the memory block to a new location (whose address is returned by the function). The content of the memory block is preserved up to the lesser ...