
the int remove (const char * filename) function in library c standard deletes the filename so it is no longer accessible.

the function int rename (const char * old_filename, const char * new_filename) in library c standard makes filename referenced, changed from old_filename to new_filename.

the function void setbuf (file * stream, char * buffer) in the standard c library defines how a stream is buffered. this function should be called once the file attached to the

the function int setvbuf (file * stream, char * buffer, int mode, size_t size) in standard c library determines how a stream should be buffered.

function file * tmpfile (void) in standard c library create temporary files in wb + mode. the temporary file created will be automatically deleted when the stream is closed

the function char * tmpnam (char * str) in the c library standard creates and returns a valid temporary file name (temp file) that did not exist before creation. if str is null,

the int fprintf function (file * stream, const char * format, ...) in standard c library sends formatted output to a stream.

the int sprintf function (char * str, const char * format, ...) in the standard c library sends the formatted output to a string str.

the int vfprintf function (file * stream, const char * format, va_list arg) in the standard c library sends the formatted output to a stream using a parameter list.

int fclose function (file * stream) in library c closes stream. all buffers are flushed (erased or moved to the periphery).

void function clearerr (file * stream) in library c deletes end-of-file and error indicator for the given stream.

the int feof function (file * stream) in the standard library c checks the end-of-file indicator for the given stream.

the int ferror function (file * stream) in library c checks the error indicator for the given stream.

the int fflush function (file * stream) in library c flushes the output buffer of a stream.

the int fgetpos function (file * stream, fpos_t * pos) in the c library standardizes the position of the current file of stream and writes it to pos.

the function file * fopen (const char * filename, const char * mode) in library c opens the file pointed to the filename parameter by using the given mode.

the function int fseek (file * stream, long int offset, int whence) in standard c library sets the stream file location to the given offset. the offset parameter specifies the

the function int fsetpos (file * stream, const fpos_t * pos) in library c sets the file location of the stream to the given location. the pos parameter is a location provided by

the function long int ftell (file * stream) in standard c library returns the current file location of the given stream.

function size_t fwrite (const void * ptr, size_t size, size_t nmemb, file * stream) in standard c library writes data from the array pointed by ptr to the given stream.