D - newbees printf
- Florian Lavrard (8/8) May 10 2003 i've a little problem with printf()
- Helmut Leitner (19/27) May 10 2003 You are not quite clear about your problems.
- Florian Lavrard (32/59) May 10 2003 Right, you have not understand, ;-)
-
Carlos Santander B.
(58/58)
May 11 2003
"Florian Lavrard"
-
Carlos Santander B.
(29/29)
May 11 2003
"Florian Lavrard"
-
Carlos Santander B.
(14/14)
May 11 2003
"Carlos Santander B."
- Florian Lavrard (9/38) May 12 2003 thanks but i don't want to import string,
-
Carlos Santander B.
(16/16)
May 13 2003
"Florian Lavrard"
i've a little problem with printf()
printf("%d",var);
- var could be an int or a char (or other)
It don't word gook with char if i use "%d", or don't work good with int if
i use "%c"...
Have you got some tips please ?
thanks
Florian
May 10 2003
Florian Lavrard wrote:
i've a little problem with printf()
printf("%d",var);
- var could be an int or a char (or other)
It don't word gook with char if i use "%d", or don't work good with int if
i use "%c"...
Have you got some tips please ?
You are not quite clear about your problems.
If you have
int i=66;
char c='A';
you would typically use
printf("%d",i);
printf("%c",c);
for printing.
If you want to print the numerical value of the character, you might use
printf("%d",(int)c); or even just
printf("%d",c);
If you want to print the int as character (66=B) you
could do it this way
printf("%c",i);
But maybe I don't understand your problem. Please describe it.
--
Helmut Leitner leitner hls.via.at
Graz, Austria www.hls-software.com
May 10 2003
Right, you have not understand, ;-)
( but i'm not sure to use the best english, i'm french)
So let's try again with an exemple :
error is explained just after source code :
template Gcouple(T){
public class couple{
private :
private T fst;
public :
this (T passfst){ this.fst = passfst;}
T getFst() {return fst;}
void show(){printf("%c",getFst());}
}
}
void main(){
instance Gcouple(int) intcouple;
intcouple.couple couple1= new intcouple.couple(1);
couple1.show();
printf("\n test COUPLE char \n");
instance Gcouple(char) charcouple;
charcouple.couple couplea= new charcouple.couple('a');
couplea.show();
}
couplea.show() use printf("%c",...); to print a char >>> .It's right
couple1.show() use printf("%c",...); to print a int >>>it's not right
Do you understand my problem well ? I hope.
( because this is just an exemple not the the true need i don't want to cast
int in char ...)
Florian
"Helmut Leitner" <leitner hls.via.at> a ιcrit dans le message news:
3EBD1CE8.9A47632 hls.via.at...
Florian Lavrard wrote:
i've a little problem with printf()
printf("%d",var);
- var could be an int or a char (or other)
It don't word gook with char if i use "%d", or don't work good with int
if
i use "%c"...
Have you got some tips please ?
You are not quite clear about your problems.
If you have
int i=66;
char c='A';
you would typically use
printf("%d",i);
printf("%c",c);
for printing.
If you want to print the numerical value of the character, you might use
printf("%d",(int)c); or even just
printf("%d",c);
If you want to print the int as character (66=B) you
could do it this way
printf("%c",i);
But maybe I don't understand your problem. Please describe it.
--
Helmut Leitner leitner hls.via.at
Graz, Austria www.hls-software.com
May 10 2003
"Carlos Santander B." <carlos8294 msn.com>
"Florian Lavrard" <flavrard free.fr.nospam.> escribiσ en el mensaje
news:b9ljqq$26qc$1 digitaldaemon.com...
| Right, you have not understand, ;-)
| ( but i'm not sure to use the best english, i'm french)
|
| So let's try again with an exemple :
|
| error is explained just after source code :
|
| template Gcouple(T){
| public class couple{
| private :
| private T fst;
|
| public :
| this (T passfst){ this.fst = passfst;}
| T getFst() {return fst;}
| void show(){printf("%c",getFst());}
| }
| }
|
| void main(){
|
|
| instance Gcouple(int) intcouple;
| intcouple.couple couple1= new intcouple.couple(1);
| couple1.show();
|
| printf("\n test COUPLE char \n");
| instance Gcouple(char) charcouple;
| charcouple.couple couplea= new charcouple.couple('a');
| couplea.show();
| }
|
|
| couplea.show() use printf("%c",...); to print a char >>> .It's right
| couple1.show() use printf("%c",...); to print a int >>>it's not right
|
| Do you understand my problem well ? I hope.
|
| ( because this is just an exemple not the the true need i don't want to
cast
| int in char ...)
|
|
|
|
| Florian
|
I don't know what the problem is. I compiled and ran it and I got a smiling
face and an 'a', and that's what should be since ascii 1 is a smiling face.
Now, if you want to print 1, then you should put %d instead of %c.
Carlos Santander
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.478 / Virus Database: 275 - Release Date: 2003-05-06
May 11 2003
"Florian Lavrard" <flavrard free.fr.nospam.> escribiσ en el mensaje
news:b9ljqq$26qc$1 digitaldaemon.com...
|
| couplea.show() use printf("%c",...); to print a char >>> .It's right
| couple1.show() use printf("%c",...); to print a int >>>it's not right
|
If you want to print 1 and 'a', try this:
void show(){printf("%.*s",toStr(getFst()));} //1
...
//outside template
import string;
char[] toStr(int i) { return string.toString(i); } //2
char[] toStr(char c) { //3
char [] res;
res ~= c;
return res;
}
This leads to a bug. I couldn't use toString instead of toStr in //2 and //3
because dmd complained in //1 that toString() doesn't match (int). I know
why's that: because dmd looks for toString inside the class. But wouldn't it
be desirable if dmd could look outside the class too? I mean, if it doesn't
find a function inside the class, then try inside the module, then inside
the imports, etc. Could it be possible?
Carlos Santander
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.478 / Virus Database: 275 - Release Date: 2003-05-06
May 11 2003
"Carlos Santander B." <carlos8294 msn.com> escribiσ en el mensaje news:b9lpra$2chc$1 digitaldaemon.com... | ... | This leads to a bug. I couldn't use toString instead of toStr in //2 and //3 | ... My mistake: there's no bug in the code I posted. Getting there led me to that bug. Carlos Santander --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.478 / Virus Database: 275 - Release Date: 2003-05-06
May 11 2003
thanks but i don't want to import string, something else ? Can't i overload printf ? how ? florian "Carlos Santander B." <carlos8294 msn.com> a ιcrit dans le message news: b9lpra$2chc$1 digitaldaemon.com..."Florian Lavrard" <flavrard free.fr.nospam.> escribiσ en el mensaje news:b9ljqq$26qc$1 digitaldaemon.com... | | couplea.show() use printf("%c",...); to print a char >>> .It's right | couple1.show() use printf("%c",...); to print a int >>>it's not right | If you want to print 1 and 'a', try this: void show(){printf("%.*s",toStr(getFst()));} //1 ... //outside template import string; char[] toStr(int i) { return string.toString(i); } //2 char[] toStr(char c) { //3 char [] res; res ~= c; return res; } This leads to a bug. I couldn't use toString instead of toStr in //2 and//3because dmd complained in //1 that toString() doesn't match (int). I know why's that: because dmd looks for toString inside the class. But wouldn'titbe desirable if dmd could look outside the class too? I mean, if itdoesn'tfind a function inside the class, then try inside the module, then inside the imports, etc. Could it be possible? ------------------------- Carlos Santander --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.478 / Virus Database: 275 - Release Date: 2003-05-06
May 12 2003
"Florian Lavrard" <flavrard free.fr.nospam.> escribiσ en el mensaje news:b9q59r$p7o$1 digitaldaemon.com... | thanks but i don't want to import string, | something else ? | | Can't i overload printf ? how ? | | florian | Sure, write your own :D Carlos Santander --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.480 / Virus Database: 276 - Release Date: 2003-05-12
May 13 2003