what fflush

1.Why?Fflush (stdin)Yes First, check the following program:   # IncludeStdio. h>   Int main (void) { Int I; For (;;){ Fputs ("Please input an integer:", stdout ); Scanf ("% d", & I ); Printf ("% d \ n", I ); } Return 0; }   This program will first

1.Why?Fflush (stdin)If yes, first check the following program: # includeStdio. h>Int main (void) {int I; for (;) {fputs ("Please input an integer:", stdout); scanf ("% d", & I ); printf ("% d/N", I);} return 0;} this program will first prompt the

PHP fflush function fflush (PHP 4 “ = 4.0.1, PHP 5) fflush-Flush output to a file description Boolean Fflush (resource $ processing) This feature forces the file handle that the force writes to all buffered outputs that the resource points to.

For C-language beginners, the fflush (stdin) function is interpreted as a system function that empties the input buffer, which is once almost half the story, with the progress of computer science, the gradual improvement in the process of learning

1. Why is fflush (stdin) incorrect?   First, check the following program:   # Include   Int main (void) { Int I; For (;;){ Fputs ("Please input an integer:", stdout ); Scanf ("% d", & I ); Printf ("% d/N", I ); } Return 0; }   This program will

1. Why is fflush (stdin) incorrect? First, check the following program: # Include Int main (void){Int I; For (;;){Fputs ("Please input an integer:", stdout );Scanf ("% d", & I );Printf ("% d/N", I );} Return 0;} This program will first prompt the

1.Why? Fflush (stdin)Yes   First, check the following program:   # IncludeStdio. h>   Int main (void) { Int I; For (;;){ Fputs ("Please input an integer:", stdout ); Scanf ("% d", & I ); Printf ("% d/N", I ); } Return 0; }   This program will first

1. Why Fflush (stdin) is wrong First, look at the following programs: include int main（ void ） { int i； for （ ；；） { fputs（"Please input an integer： "， stdout）； scanf（"%d"， &i）； printf（"%d\n"， i）； } return 0； } The program first

 1. Why is fflush (stdin) incorrect?First, check the following program:# Include Int main (void){Int I;For (;;){Fputs ("Please input an integer:", stdout );Scanf ("% d", & I );Printf ("% d/N", I );}Return 0;}This program will first prompt the user

NAMEFflush-flush a StreamSynopsis#include int fflush (FILE *stream);DESCRIPTIONFor output streams, fflush () forces a write of all user-space buffered data for the given output or update stream via the Stream ' s underlying write function.For-input

Fflush (stdin) has never been defined in the C and C ++ standards ). Some people may say, "but I used fflush (stdin) to solve this problem. How can you say it is wrong ?" Indeed, some compilers (such as vc6) Support fflush (stdin) to clear the input

PHP fflush functions Fflush(php 4 "= 4.0.1, PHP 5)Fflush-Flush output to a fileDescribeBoolean fflush (resource $ processing)This feature forces the file handle that is pointed to by the resource to which all buffered outputs are

Fflush is used to clear the buffer stream. Although it is generally invisible, the default printf is used to buffer the output. Fflush (stdout), so that stdout is cleared, it will immediately output all content in the buffer. The fflush (stdout)

Transferred from: http://blog.csdn.net/yeyuangen/article/details/6743416Fflush (stdin) cleans up the standard input stream and discards the excess data that is still not saved.Fflush (stdout): empties the output buffer and outputs the buffer

1.fflush (stdin): Role: Clean up the standard input stream and throw away the excess data that has not been saved. Such as: int main () { int num; Char str[10]; cin>>num; cout>str; cout Get an integer

Fflush is used to empty the buffer stream, although it is generally not felt, but the default printf is buffered output. Fflush (stdout), so that stdout empty, will immediately output all the contents in the buffer. The example of Fflush (stdout)

Fflush Syntax: # Include int fflush (File * stream ); If the given file stream is an output stream, fflush () writes the content output to the buffer to the file. if the given file stream is of the input type, fflush ()

Sync, fsync, fdatasync, and fflush In most Unix/Linux systems, disk I/O write operations are completed through caching. The basic principle is as follows: when writing data to a file, the kernel usually copies the data to one of the

This article was reproduced from: http://blog.chinaunix.net/uid-30058258-id-5029847.htmlprintf is a row buffer functionThe printf function is a standard function and will eventually be called to the system call function, and the printf function will

1. Source Fflush is the method provided in libc., Fsync is a system call provided by the system. 2. Prototype Fflush accepts a parameter file *. Fflush (File *); Fsync accepts an int-type file descriptor. Fsync (int fd ); 3. Functions