• =?ISO-8859-1?Q?Fabian_Cla=dfen?= (57/57) Nov 30 2008 Hi
• Walter Bright (3/11) Nov 30 2008 %d is for integral arguments, not floating point ones. Try %s.
• =?ISO-8859-1?Q?Fabian_Cla=dfen?= (5/18) Nov 30 2008 Thank you.
• Derek Parnell (9/21) Nov 30 2008 Also note that you would use '%f' or '%g' if you wanted to force runtime
• =?ISO-8859-1?Q?Fabian_Cla=dfen?= (6/30) Dec 01 2008 Hi

=?ISO-8859-1?Q?Fabian_Cla=dfen?= <admin fabs-world.de> writes:

Hi
I've learned the D language for a few days.
I've worked in other languages before.
But now I have following problems:

First:

import std.stdio;

double add(double param[] ...) {
	double result = 0;
	foreach(double d; param) {
		result += d;
	}
	return result;
}

int main() {
	double zahl;
	zahl = add(2, 5.6, 7.8);
	writefln("%d", zahl);
	return 0;
}

___________________________________________________________

Second:

import std.stdio;
import std.format;

int main() {
	double zahl = add(1, 5.6, 41, "Hello");
	writefln("%d", zahl);
	return 0;
}

double add(...) {
	double result = 0;
	for(int i=0; i < _arguments.length; i++) {
		if(_arguments[i] == typeid(double)) {
			double var = *cast(double*)_argptr;
			result += var;
			_argptr += double.sizeof;
		} else if(_arguments[i] == typeid(float)) {
			float var = *cast(float*)_argptr;
			result += var;
			_argptr += double.sizeof;
		} else if(_arguments[i] == typeid(int)) {
			int var = *cast(int*)_argptr;
			result += var;
			_argptr += int.sizeof;
		} else if(_arguments[i] == typeid(bool)) {
			_argptr += bool.sizeof;
		} else if(_arguments[i] == typeid(char[])) {
			char[] var = *cast(char[]*)_argptr;
			_argptr += var.sizeof;
		}
	}
	return result;
}

When I try to run this codes there is printed following message in the cmd:

Error: std.format floating

Please help me. I have no idea.

Greetings
Fabian Claßen

Walter Bright <newshound1 digitalmars.com> writes:

Fabian Claßen wrote:
 	double zahl = add(1, 5.6, 41, "Hello");
 	writefln("%d", zahl);

[...]
 
 When I try to run this codes there is printed following message in the cmd:
 
 Error: std.format floating
 
 Please help me. I have no idea.


%d is for integral arguments, not floating point ones. Try %s.

=?ISO-8859-1?Q?Fabian_Cla=dfen?= <admin fabs-world.de> writes:

Walter Bright Wrote:

 Fabian Claßen wrote:
 	double zahl = add(1, 5.6, 41, "Hello");
 	writefln("%d", zahl);

 [...]
 
 When I try to run this codes there is printed following message in the cmd:
 
 Error: std.format floating
 
 Please help me. I have no idea.

 
 
 %d is for integral arguments, not floating point ones. Try %s.

Thank you.
Now does the code works. :D
Amazing *lol
I love the D programming language

Derek Parnell <derek psych.ward> writes:

On Sun, 30 Nov 2008 10:58:50 -0800, Walter Bright wrote:

 Fabian Claßen wrote:
 	double zahl = add(1, 5.6, 41, "Hello");
 	writefln("%d", zahl);

 [...]
 
 When I try to run this codes there is printed following message in the cmd:
 
 Error: std.format floating
 
 Please help me. I have no idea.

 
 %d is for integral arguments, not floating point ones. Try %s.

Also note that you would use '%f' or '%g' if you wanted to force runtime
type checking on your arguments. The '%s' does not force typechecking as it
converts whatever argument it is given to a string. You would also use "%f"
if you needed finer formatting details, such as "%5.2f" etc ...

-- 
Derek Parnell
Melbourne, Australia
skype: derek.j.parnell

=?ISO-8859-1?Q?Fabian_Cla=dfen?= <admin fabs-world.de> writes:

Derek Parnell Wrote:

 On Sun, 30 Nov 2008 10:58:50 -0800, Walter Bright wrote:
 
 Fabian Claßen wrote:
 	double zahl = add(1, 5.6, 41, "Hello");
 	writefln("%d", zahl);

 [...]
 
 When I try to run this codes there is printed following message in the cmd:
 
 Error: std.format floating
 
 Please help me. I have no idea.

 
 %d is for integral arguments, not floating point ones. Try %s.

 
 Also note that you would use '%f' or '%g' if you wanted to force runtime
 type checking on your arguments. The '%s' does not force typechecking as it
 converts whatever argument it is given to a string. You would also use "%f"
 if you needed finer formatting details, such as "%5.2f" etc ...
 
 -- 
 Derek Parnell
 Melbourne, Australia
 skype: derek.j.parnell

Hi
thanks for that information.
You are a big help.
;)
Greetings Fabian Claßen