staticintget_cur_time_us(void){structtimevaltv;gettimeofday(&tv,NULL);//使用gettimeofday获取当前系统时间return(tv.tv_sec *1000*1000+ tv.tv_usec);//利用struct timeval结构体将时间转换为ms} #defineARRAY_SIZE(n) sizeof(n) / sizeof(n[0])intmain(void){intsize_list[] =...
}free(msg);structBookStruct*bsp=&arr;returnbsp; } voidcharArr8() {char**p=charArray7();for(inti=0;i<100;i++) { printf("I=%d,value=%s\n",i,*(p+i));free(*(p+i)); } }char**charArray7() {staticchar* arr[100];char*msg=(char*)malloc(40);for(inti=0;i<100;i++) {...
// 代码基本都是使用 C 风格函数 #include <iostream> #include <cstring> #include <stdio.h> // 打印数组函数 void print_array(int* arr, int n) { if (arr == NULL) { // C语言用 NULL,C++11用nullptr return; } for (int i = 0; i < n; i++){ printf("%d ", arr[i]); } pri...
Marshal对应的实现ByteToStruct,及效率对比完整程序如下:以读取魔兽世界M2文件为例,经测试发现ByteToStruct用时为MemCopy的3倍到4倍 usingSystem.Collections;usingSystem.Collections.Generic;usingUnityEngine;usingSystem.IO;usingNUnit.Framework.Internal.Filters;usingSystem;usingSystem.Runtime.InteropServices;usingSystem....
Cython 是基于 Python 的相对年轻的编程语言。 它允许编码人员将 C 的速度与 Python 的功能混合在一起...
// // Created by zhangrongxiang on 2018/2/9 10:32 // File memcpy // #include <stdio.h> #include <stdint.h> #include <inttypes.h> #include <string.h> #include <stdlib.h> struct { char name[40]; int age; } person, person_copy; //C 库函数 void *memcpy(void *str1, const ...
7]std::memmove(arr+4,arr+3,4);// 从 [4, 5, 6] 复制到 [5, 6, 7]print_array(arr,9...
2.其次： 在c++中如果用typedef的话，又会造成区别： struct Student { ...
memblock_double_array zswap_frontswap_store attempts to compress and store an single page transfer_objects Transfer objects in one arraycache to another.* Locking must be handled by the caller.* Return the number of entries transferred. init_list swap the static kmem_cache_node with kmalloced...
typedefstructD3D12_MEMCPY_DEST{void*pData; SIZE_T RowPitch; SIZE_T SlicePitch; } D3D12_MEMCPY_DEST; Members pData A pointer to a memory block that receives the copied data. RowPitch The row pitch, or width, or physical size, in bytes, of the subresource data. ...