• Ben Hinkle (5/5) May 31 2005 Anyone know why ungetc in std.stream returns the input character? I'm
• Sean Kelly (4/9) Jun 01 2005 I can't think of any reason I'd want the input character from an unget. ...
• =?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= (12/20) Jun 01 2005 It does in C, so I guess that's why it does in D too.
• SeeSchloss (3/4) Jun 01 2005 char c = stream.ungetc (stream.getc ()); ?
• Ben Hinkle (3/7) Jun 02 2005 OK. might as well keep it the way it is.

"Ben Hinkle" <ben.hinkle gmail.com> writes:

Anyone know why ungetc in std.stream returns the input character? I'm 
thinking of changing that to
  void ungetc(char c)
and
  void ungetcw(wchar c)

Sean Kelly <sean f4.ca> writes:

In article <d7ipim$12t$1 digitaldaemon.com>, Ben Hinkle says...
Anyone know why ungetc in std.stream returns the input character? I'm 
thinking of changing that to
  void ungetc(char c)
and
  void ungetcw(wchar c)

I can't think of any reason I'd want the input character from an unget.  I say
change it.


Sean

=?ISO-8859-1?Q?Anders_F_Bj=F6rklund?= <afb algonet.se> writes:

Sean Kelly wrote:

Anyone know why ungetc in std.stream returns the input character? I'm 
thinking of changing that to
 void ungetc(char c)
and
 void ungetcw(wchar c)

 
 I can't think of any reason I'd want the input character from an unget.  I say
 change it.

It does in C, so I guess that's why it does in D too.

SYNOPSIS
      #include <stdio.h>

      int
      ungetc(int c, FILE *stream);

RETURN VALUES
      The ungetc() function returns the character pushed-back after
      the conversion, or EOF if the operation fails.


So it seems the main reason for the return value in C,
is to have somewhere quick to return an error code in ?

--anders

SeeSchloss <ng seeschloss.org> writes:

On Tue, 31 May 2005 18:47:47 -0400, Ben Hinkle wrote:

 Anyone know why ungetc in std.stream returns the input character?

char c = stream.ungetc (stream.getc ()); ?

Not sure if it's really important, but it's the only use I see.

"Ben Hinkle" <bhinkle mathworks.com> writes:

"SeeSchloss" <ng seeschloss.org> wrote in message 
news:pan.2005.06.01.18.18.51.756416 seeschloss.org...
 On Tue, 31 May 2005 18:47:47 -0400, Ben Hinkle wrote:

 Anyone know why ungetc in std.stream returns the input character?

 char c = stream.ungetc (stream.getc ()); ?

 Not sure if it's really important, but it's the only use I see.

OK. might as well keep it the way it is.