Common Linux C functions-File Content operations-general Linux technology-Linux programming and kernel information. For more information, see the following. Clearerr (error flag for clearing file streams)
Feof
Header file # include
Define the
Transfer from http://blog.csdn.net/todd911/article/details/12909685There are three ways to locate a stream.The 1.ftell function and the Fseek function both function since the V7 dependency exists. However, they assume that the location of the file
Linux-fopen-fclose-fread-fwrite and other functions
Clearerr (error flag for clearing file streams)
Related functions
Feof
Header file
# Include
Define functions
Void clearerr (File * stream );
Function Description
Clearerr () clears the error
We know that the temporary declarations of variables are stored in memory, even static variables, after the script is finished will be released, so, want to save the content of a variable for a long time, one way is to write to the file, put on the
Details the php file directory base operation,
We know that the temporary declaration of the variable is stored in memory, even if it is a static variable, the script will be released after the run, so, want to persist the contents of a variable,
Clearerr (error flag for clearing file streams)FeofHeader file # include Define the void clearerr (File * stream) function );Function Description clearerr () clears the error flag used by the file stream specified by the stream parameter.Return
Today we continue to see what the cattle have done, this small program is not very big, plus a considerable number of comment lines, only more than 5,000 lines. This small program is implemented under Linux, and has been used to look at the VI and
PHP Learning Basics-File System (ii) file read and write operations, file resource processing
I. Opening and closing of files
/* * Read the contents of the file *file_get_contents (); PHP5 above *file () *readfile (); * * Insufficient: Read all,
PHP File processing advanced application-file pointer php can implement the positioning of the file pointer and query, so as to achieve the required information fast query, the file pointer function has rewind (), fseek (), feof () and Ftell ()
In PHP, apart from the most common fopen (), fwrite (), and fread () functions, there are also many useful built-in file operation functions. Some of these functions can be used independently, and some need to work with other functions. Let's take a
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
S_isreg () regular fileS_isdir () directory fileS_ischr () character Device FileS_blk () block Device FileS_fifo famous Pipeline FileS_islnk symbolic link fileS_sock socket File
# Include # Include
Int open (const char * pathname, int Oflag,.../*
C file operation functionsClearerr (error flag for clearing file streams)FeofHeader file # include Define the void clearerr (File * stream) function );Function Description clearerr () clears the error flag used by the file stream specified by the
Fgets (read a string from the file)Related functions: open, fread, fscanf, GETCHeader file include Define the function char * fgets (char * s, int size, file * stream );Function Description: fgets () is used to read characters from the file referred
Ftell:Merit: Returns the current FILE location, that is, the current position of the FILE pointer.
Function prototype: Long ftell (FILE * stream );
Function: The ftell () function is used to obtain the number of offset bytes from the current
UNIX advanced environment programming (7) standard I/O function library and I/O function library
1 Binary IO (Binary IO)
In the previous article, we learned about character-by-character read/write and row-by-row read/write functions.
If we want to
.....Recently in the study of Apue, so by the way the Daily Record, on the one hand to consolidate the knowledge of learning, on the other hand also for the same learning Apue children's shoes to provide a reference.This series is based on learning "
PHP File processing advanced application-file pointer php can implement the positioning of the file pointer and query, so as to achieve the required information fast query, the file pointer function has rewind (), fseek (), feof () and Ftell ()
fopen (Open file)
Correlation function Open,fclose
Table header file #include
Defines the function FILE * fopen (const char * path,const char * mode);
Function description The path string contains the file path and filename to open, and the
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