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What is the function Fseek?
The fseek() function in PHP is an inbuilt function which is used to seek in an open file. It moves the file pointer from its current position to a new position, forward or backward specified by the number of bytes.
What will be the value of Fseek if error occurs?
The fseek function returns zero if successful. If an error occurs, the fseek function will return a nonzero value.
Is Fseek standard C?
fseek is a C function belonging to the ANSI C standard library, and included in the file stdio. Its purpose is to change the file position indicator for the specified stream.
What is EOF when it is used?
Remarks. Use EOF to avoid the error generated by attempting to get input past the end of a file. The EOF function returns False until the end of the file has been reached. With files opened for Random or Binary access, EOF returns False until the last executed Get statement is unable to read an entire record.
Does Fread move the file pointer?
Yes, calling fread does indeed move the file pointer. The file pointer will be advanced by the number of bytes actually read. In case of an error in fread, the file position after calling fread is unspecified.
What does Ftell do in C?
In C language, ftell() returns the current file position of the specified stream with respect to the starting of the file. This function is used to get the total size of file after moving the file pointer at the end of the file.
How do you detect EOF?
eof() You can detect when the end of the file is reached by using the member function eof() which has prototype : int eof(); It returns non-zero when the end of file has been reached, otherwise it returns zero.
What is the name of the fseek function?
SEEK_CUR: It indicates the current position of the pointer of the file. SEEK_END: As the name indicates, it moves the pointer of the file to the end of the file. SEEK_SET: As the name indicates, it moves the file pointer to the beginning of the start of the file
When to use FSEEK to move a file pointer?
fseek() is used to move file pointer associated with a given file to a specific position.
When to use fclose or fseek in C?
After performing all the operations, fclose () function is used to close the file. The above description clearly explains the fseek () function in C and how it is used in C language.
How to use fseek, ftell, and rewind in C?
fseek (), ftell () and rewind () fseek () – It is used to moves the reading control to different positions using fseek function. ftell () – It tells the byte location of current position in file pointer. rewind () – It moves the control to beginning of a file.