fprintf() - I/O Function
How is "fprintf()" used in C++?
Explanation
fprint() is an I/O function that is used to output the values of arguments given after the "format" string in the specified format.
int fprintf( FILE * stream, const char *format,...);
The following table lists the type specifier used with fprintf()
Hiox India
In the above example the "fprintf()" is used to print the output "Hiox India" to the file "fprintfeg.txt".
Syntax:
int fprintf( FILE * stream, const char *format,...);
The following table lists the type specifier used with fprintf()
| Type | Description |
| c | Character |
| d or i | Signed decimal integer |
| e | Scientific notation using e character |
| E | Scientific notation using E character |
| f | Decimal floating point |
| g | Use the shorter of %e or %f |
| G | Use the shorter of %E or %f |
| o | Signed octal |
| s | String of characters |
| u | Unsigned decimal integer |
| x | Unsigned hexadecimal integer |
| X | Unsigned hexadecimal integer(capital) |
| p | Pointer address |
| % | A % followed by another % character will write % to the stream. |
Example :
| #include <stdio.h> int main() { char a[] = "India"; FILE *str = fopen( "fprintfeg.txt", "w" ); fprintf( str, "Hiox %s\n", a ); } |
Result:fprintfeg.txt
Hiox India
In the above example the "fprintf()" is used to print the output "Hiox India" to the file "fprintfeg.txt".
