struct

问题 I am writing an application in C# that hooks the connect function call of another program and reads the IP it is connecting to. (I know it is IPv4) Currently it hooks, intercepts and forwards the function call and I get the variables but since connect in winsock is called with a sockaddr* variable as the second argument, I need cast this to a sockaddr_in to get the IP address. (Unless there is a way to retrieve the ip out of the sa_data field, which I couldn't find information about.) This is

问题 Closed . This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 5 years ago . Currently I am writing a library for a communication protocol. For this task I need this struct: typedef struct _C8B10 { unsigned int six :6; unsigned int four :4; } C8B10; But where should I define it? I have one 'main' *.h-file that is included by all other libs. The *.c-files for each lib

问题 I'm having trouble running the program, there are no warnings or errors popping up in CodeBlocks. The trouble comes when I create an ArrayList struct of pointer type and try to dynamically allocate memory using malloc. I'm using the syntax '->.' I've been at this for hours with no real leads. #include <stdio.h> #include <string.h> #define DEFAULT_INIT_LEN 10//this is in another header file typedef struct ArrayList{//this is also in another header file char **array; int size; int capacity; }

问题 I have a file which contains 2^32 key/value pairs like that; 32410806935257552 7355088504912337885 32422108164434515 8864339902215816897 32476145725020530 3183682744179377405 32554129507725755 7487866067392975840 32556703862039701 6580190515895793022 32576110112978588 468697310917255961 32589559935917707 757063057981860288 32724197203660231 4397507527199428746 32740607750878547 497049298362389181 32804063187658851 690408619066859126 .... I need to read that file and get the 1000 lines every

问题 I have a function that receives by a pointer the location where will be stored. This place can have different other similar structs.The function has to read a file. This file have stored a struct, which i need to read. typedef struct user_manage_t{ short int user_id; char permission; long int other_id; long int check; }user_manage_t; typedef struct holder_t{ user_manage_t *user_manage; user_manage_t *user_manage_backup; //(...)and a lot of stuff }holder_t; holder_t holder; int db_read_from

问题 Structure 1: typedef struct _wfs_cdm_cu_info { USHORT usTellerID; USHORT usCount; LPWFSCDMCASHUNIT * lppList; } WFSCDMCUINFO, * LPWFSCDMCUINFO; Structure 2: typedef struct _wfs_cdm_cashunit { USHORT usNumber; USHORT usType; LPSTR lpszCashUnitName; CHAR cUnitID[5]; CHAR cCurrencyID[3]; ULONG ulValues; ULONG ulInitialCount; ULONG ulCount; ULONG ulRejectCount; ULONG ulMinimum; ULONG ulMaximum; BOOL bAppLock; USHORT usStatus; USHORT usNumPhysicalCUs; LPWFSCDMPHCU * lppPhysical; } WFSCDMCASHUNIT,

问题 Here is a function of a program I'm writing to get more familiar with nodes. I'm not sure if it is correct but essentially it check to see if the Node is Null if it is then it add the information to the code field and sets the pointer to NULL. Otherwise it creates a new node and inserts the information into the code field and then points to the existing first node. I'm not sure how to change the header that's pointing to the original first node to point to the new node. The code is typedef

问题 This is probably a basic question but I want to allocate the memory for 3 dimensional array of a struct. I'm trying to read doubles from a file and want to store in struct. The first line is block number (not relevant here as it'll be 1 always), second line denotes the number of grid points in X, Y and Z coordinate respectively. In this case 10 points in X, 5 in Y and 1 in Z direction. And from third line, are the X,Y,Z coordinates of each points which are the doubles I would like to read.

问题 I've a small background in C that I'm trying to dig up, and I encountered something I can't explain. Let's say I have the following structure: struct World { Things* things; }; and the following functions: void initWorld(World *world); void addThingToWorld(World *world, Thing *thing); Now, depending on the implementation of initWorld and how I use it, it will either work or not. But I don't understand why the second implementation should fail. Both implementations are below: First (working)

问题 I'm having an issue where swift is changing my float value when it's inside a struct.. I dont think this happened on older versions of swift, but it is happening now on 4.1. Code example below... thoughts? var f = Float(4.111) print(f) // prints 4.111 struct FloatContainer { var f: Float } let container = FloatContainer(f: f) print(container) // prints FloatContainer(f: 4.11100006) 回答1: That's a common rounding error, since binary can't represent some decimal numbers. Have a look here. Here