fsetpos() - I/O Function
How is fsetpos() used in C++?
How to set file position?
Explanation
fsetpos() is an I/O function that moves the file position indicator to the point specified by the position parameter. This function returns a zero value on success, otherwise returns a nonzero value and sets the global variable errno to a positive value.
int fsetpos ( FILE * stream, const fpos_t * pos );
Result :
This is a blue color box
In the above example the "fsetpos()" is used to write a text "this" to the current file position of the specified stream.
Syntax:
int fsetpos ( FILE * stream, const fpos_t * pos );
Example :
| #include <stdio.h> int main() { FILE * str=fopen ("fsetposeg.txt","w"); fpos_t pos; fgetpos (str, &pos); fputs ("It is a blue color box",str); fsetpos (str, &pos); fputs ("This", str); fclose (str); return 0; } |
Result :
This is a blue color box
In the above example the "fsetpos()" is used to write a text "this" to the current file position of the specified stream.
