GETDOUBLE
Section: C Library Functions (3)
Updated: 10/23/82
Index
Return to Main Contents
NAME
getdouble, getfloat - ask user to type floating-point value
SYNOPSIS
#include <ctype.h>
#include <math.h>
#include <stdio.h>
double getdouble (prompt,min,max,defalt);
char *prompt;
double min,max,defalt;
float getfloat (prompt,min,max,defalt);
char *prompt;
float min,max,defalt;
DESCRIPTION
Getdouble
and
getfloat
ask the user to type a floating-point number.
They begin
by printing the string
prompt
as a message to the user.
The user then types in a floating-point
number which is parsed.
If the number is valid and is within
the range
min
to
max,
inclusive, then the value is returned as the value of
getdouble
or
getfloat.
If the value is invalid or out of range, then an error message is
printed and the cycle is repeated.
If the user types just a carriage
return, then the value
defalt
is returned.
Getdouble
and
getfloat
are identical, except for the type of the parameters and the results.
SEE ALSO
getint(3),
getbool(3),
etc.
doublearg(3),
floatarg(3)
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- SEE ALSO
-
This document was created by
man2html,
using the manual pages.
Time: 11:12:47 GMT, November 04, 2022