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digitalmars.D - std.stream.vprintf

reply ben <ben_member pathlink.com> writes:
How can I make use of std.stream.vprintf.  This if obviously wrong, because it
won't compile.

import std.stream;
import std.c.process;

void die(char[] fmt, ...){
std.stream.vprintf(fmt, _argptr);
exit(1);
}

Any help is much appreciated.
Jun 13 2005
next sibling parent reply Derek Parnell <derek psych.ward> writes:
On Tue, 14 Jun 2005 05:20:46 +0000 (UTC), ben wrote:


 How can I make use of std.stream.vprintf.  This if obviously wrong, because it
 won't compile.
 
 import std.stream;
 import std.c.process;
 
 void die(char[] fmt, ...){
 std.stream.vprintf(fmt, _argptr);
 exit(1);
 }
 
 Any help is much appreciated.



  import std.stdarg;
  void die(char[] fmt, ...) {
    va_list ap;
    ap = cast(va_list) &fmt;
    ap += fmt.sizeof;
    std.stream.vprintf(fmt, ap);
  }

-- 
Derek
Melbourne, Australia
14/06/2005 3:29:15 PM
Jun 13 2005
parent reply Derek Parnell <derek psych.ward> writes:
On Tue, 14 Jun 2005 15:31:34 +1000, Derek Parnell wrote:


 On Tue, 14 Jun 2005 05:20:46 +0000 (UTC), ben wrote:
 

 How can I make use of std.stream.vprintf.  This if obviously wrong, because it
 won't compile.
 
 import std.stream;
 import std.c.process;
 
 void die(char[] fmt, ...){
 std.stream.vprintf(fmt, _argptr);
 exit(1);
 }
 
 Any help is much appreciated.



   import std.stdarg;
   void die(char[] fmt, ...) {
     va_list ap;
     ap = cast(va_list) &fmt;
     ap += fmt.sizeof;
     std.stream.vprintf(fmt, ap);
   }



Nope, this doesn't work either. Sorry, but maybe its a lead.

-- 
Derek
Melbourne, Australia
14/06/2005 3:47:05 PM
Jun 13 2005
parent Derek Parnell <derek psych.ward> writes:
On Tue, 14 Jun 2005 15:47:48 +1000, Derek Parnell wrote:


 On Tue, 14 Jun 2005 15:31:34 +1000, Derek Parnell wrote:
 

 On Tue, 14 Jun 2005 05:20:46 +0000 (UTC), ben wrote:
 

 How can I make use of std.stream.vprintf.  This if obviously wrong, because it
 won't compile.
 
 import std.stream;
 import std.c.process;
 
 void die(char[] fmt, ...){
 std.stream.vprintf(fmt, _argptr);
 exit(1);
 }
 
 Any help is much appreciated.



   import std.stdarg;
   void die(char[] fmt, ...) {
     va_list ap;
     ap = cast(va_list) &fmt;
     ap += fmt.sizeof;
     std.stream.vprintf(fmt, ap);
   }



 Nope, this doesn't work either. Sorry, but maybe its a lead.



Here is one that does work ...

<code>
import std.stdarg;
import std.stream;

BufferedFile f;

void die(char[] fmt, ...)
{
    va_list ap;
    ap = cast(va_list) &fmt;
    ap += fmt.sizeof;
    f.vprintf(fmt, ap);
  }

void main()
{
    f = new BufferedFile("c:\\temp\\test.txt", FileMode.OutNew);
    // NOTE **** The usage of 'C' style string format code '%.*s'
    die("Code: %d is '%.*s'\n", 12, "test value");
    f.close();
}

</code>

-- 
Derek
Melbourne, Australia
14/06/2005 4:04:58 PM
Jun 13 2005
prev sibling next sibling parent reply Vathix <vathix dprogramming.com> writes:
On Tue, 14 Jun 2005 01:20:46 -0400, ben <ben_member pathlink.com> wrote:


 How can I make use of std.stream.vprintf.  This if obviously wrong,  
 because it
 won't compile.

 import std.stream;
 import std.c.process;

 void die(char[] fmt, ...){
 std.stream.vprintf(fmt, _argptr);
 exit(1);
 }

 Any help is much appreciated.



Not an answer but it would be nice if there was vwritef().
While looking through the docs I noticed writef() returns Stream when it  
should probably return OutputStream.
Jun 13 2005
parent Derek Parnell <derek psych.ward> writes:
On Tue, 14 Jun 2005 02:25:23 -0400, Vathix wrote:


 On Tue, 14 Jun 2005 01:20:46 -0400, ben <ben_member pathlink.com> wrote:
 

 How can I make use of std.stream.vprintf.  This if obviously wrong,  
 because it
 won't compile.

 import std.stream;
 import std.c.process;

 void die(char[] fmt, ...){
 std.stream.vprintf(fmt, _argptr);
 exit(1);
 }

 Any help is much appreciated.



 Not an answer but it would be nice if there was vwritef().



Yes, I was just thinking the same thing.

And I just slapped myself because a simpler solution is just ...

BufferedFile f;
void die(char[] fmt, ...)
{
    f.vprintf(fmt, _argptr);
}

-- 
Derek
Melbourne, Australia
14/06/2005 4:28:26 PM
Jun 13 2005
prev sibling parent "Ben Hinkle" <ben.hinkle gmail.com> writes:
"ben" <ben_member pathlink.com> wrote in message 
news:d8lpfe$6ho$1 digitaldaemon.com...

 How can I make use of std.stream.vprintf.  This if obviously wrong, 
 because it
 won't compile.

 import std.stream;
 import std.c.process;

 void die(char[] fmt, ...){
 std.stream.vprintf(fmt, _argptr);
 exit(1);
 }

 Any help is much appreciated.



note vprintf is not static so one must supply an instance of a stream as 
Derek's post suggests.
Jun 29 2005