what fflush

I. Port 1. 0-1023: Reserved port, used by Super Users 2. 1024-49151: The registered port number 3. 49152-65535: freely available port or dynamic port Ii. Socket Type 1. SOCK_STREAM (byte stream socket): connection-oriented, reliable full-duplex byte

[C #] collaborative thread cancellation, Microsoft. Net Framework provides a standard mode for canceling operations. This mode is collaborative, meaning that the operation you want to cancel must be displayed to support cancellation. CLR provides

[C #] events, The CLR event mode is based on the delegate, which is a type of safe method for calling the callback method. I personally think that an event is essentially a delegate, so I figured out the delegate, as long as I knew the basic syntax

[C # Learning] Insecure code, Today, I wrote a technical essay on the first day, but it was not easy to write. I hope readers can understand it. These two days I learned the Insecure code in C #. When I heard this name, I first thought of why I had

MFC file operations, mfc files File Operations: differences between binary files and text files. The binary file moves the data in the memory mode to the file, while the text file moves the asc code of the data to the file.First, make a menu for

1. Prototype declaration: Char *strcpy (char* dest, const char *SRC);Header files: #include and #include Function: Copy a string that starts from the SRC address and contains a null terminator to the address space starting with destDescription: The

Implemented features: Add students, list student information lists, delete students, exit, repeat check, sorting function, multi-subjects score input (average score, and total average score), save records, read records, modify the function; Features

When it comes to system tuning for IO-intensive applications, we often need to know the system performance and usage, such as the system CPU memory IO Network, combined with the application's own traffic, and MySQL performance indicators to

Void clearerr (File * stream); The feof function indicates the error flag used by clearerr () to clear the file stream specified by the stream parameter.Int fclose (File * stream ); Related functions close, fflush, fopen, and setbuf indicate that

#include Gets the year that the user entered (1900-2100#include //Gets the Year (1900-2100) entered by the user and prompts for re-entry if the user input is incorrect int getuserinputyear (void) { printf (" Please enter a year (1900-2100): ");

1#include"stdio.h"2 voidMain ()3 {4 /*define variable, D1,D2: first to second number fu: symbol P1: Receive judgment number y/n5 P2: Received P1 assigned to P16 */7 intd1,d2;8 Charfu,p1,p2;9 DoTen { Oneprintf"Please enter

[C #] delegate,  1. Basic delegate writing: internal class Program {private static void Main (string [] args) {ChainDelegate (); Console. readKey ();} public static void ChainDelegate () {// create a delegate Feedback feedbackToConsole = new

[C #] inheritance of OOP, Preface: There are not many questions about how to inherit from this point. Here we only describe some basic articles I think. Hope you can give me some advice.This section describes the inheritance of C # advanced

Problem chain DescriptionInteracting with the interaction library, you give the n points, the interaction library specifies the color, and a line splits the color.SolTwo points on the x-axis and the y-axis respectively.Code#include #defineMid (l+r>>1

Synchronize the kernel buffer 1. introduction to the buffer zone one of the three illusion of life: when calling the function write (), we think that once the function is returned, the data has been written into the file. however, this concept is

Inter-process communication (3)-semaphores and processes communication semaphores I will use several blogs to summarize several methods of communication between processes in Linux. I will write the summary at the beginning in each blog of this

Synchronize kernel buffer sync, fsync, and fdatasync functions, fsyncfdatasyncSynchronize the kernel buffer 1. introduction to the buffer zone one of the three illusion of life: when calling the function write (), we think that once the function is

I. fflush 1. The fflush prototype is as follows: Int fflush (File * stream ); 2. When you need to physically write the data in the output buffer immediately, you should use this function. For example, the fflush function is called to ensure that

# Include # Include # Include Typedef struct{Char key [10];Char name [20];Int age;} Data; Typedef struct node // define the linked list Structure{Data nodedata;Struct node * nextnode;} Cltype; Cltype * claddend (cltype * head, data nodedata) //

1. Questions: in the afternoon, a classmate asked such a question: Tail-n +$ (tail-n1/root/tmp/n)-f/root/tmp/ip.txt 2>&1| awk ' argind==1{i=$0;next}{i++;if ($0~/file truncated/) {i=0};p rint "---" I;print i >> "/root/tmp/n"} '/root/tmp/n- Seq