What does Ftell mean in C?
ftell() in C is used to find out the position of file pointer in the file with respect to starting of the file. Syntax of ftell() is: long ftell(FILE *pointer)
Which is the Ftell () syntax?
The ftell() function returns the current file position of the specified stream. We can use SEEK_END constant to move the file pointer at the end of file. Syntax: long int ftell(FILE *stream)
What is Ftell?
The ftell(), ftello(), and ftello64() functions return the current position of the stream specified by fp . This position defines the character that will be read or written by the next I/O operation on the file. The ftello64() function is a large-file support version of ftello().
What is purpose of Ftell?
ftell() function is used to get the current file referred by the file pointer. ftell(fp); returns a long integer value referring the current location of the file pointed by the file pointer fp. If there’s an error, it will return -1.
How do I use Ftell in C++?
The ftell() function in C++ returns the current position of the file pointer.
- ftell() prototype. long ftell(FILE* stream);
- ftell() Parameters. stream : The file stream whose current position is returned.
- ftell() Return value.
- Example: How ftell() function works.
What are the uses of Ftell and rewind function?
ftell function is used to get current position of the file pointer. In a C program, we use ftell() as below. rewind function is used to move file pointer position to the beginning of the file.
What is fwrite in C?
C library function – fwrite() The C library function size_t fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream) writes data from the array pointed to, by ptr to the given stream.
What is Fgets and Fputs in C?
fgets() and fputs() functions In C Language. fgets() function reads string from a file pointed by file pointer. It also copies the string to a memory location referred by an array. fputs() function is useful when we want to write a string into the opened file .
What is the function of Ftell?
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.