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digitalmars.D.bugs - broken: #line integer ["filespec"]

reply "Thomas Kuehne" <eisvogel users.sourceforge.net> writes:
special token "line":

 #line integer ["filespec"]\n



The documentation only states that the line number is an integer, but the
implementation rejects negative integers.
test case: svn://svn.kuehne.cn/dstress/run/line_token_01.d

The filespec "" is accepted by both the documentation and the implementation
but is treated as if no filespec was given.
test case: svn://svn.kuehne.cn/dstress/run/line_token_03.d

Even non-empty filespecs are ignored and instead the original filespec is used.
test case: svn://svn.kuehne.cn/dstress/run/line_token_04.d

Thomas
Oct 13 2004
parent reply Burton Radons <burton-radons smocky.com> writes:
Thomas Kuehne wrote:

 special token "line":
 

#line integer ["filespec"]\n



 
 The documentation only states that the line number is an integer, but the
implementation rejects negative integers.
 test case: svn://svn.kuehne.cn/dstress/run/line_token_01.d



It's defined as taking Integer, which is defined earlier in the lexical 
page.  Integer literals are not signed.

For CPP compatibility, it should take decimal digits only; for example, 
019 to indicate 19:

     http://www.kuzbass.ru:8086/docs/isocpp/cpp.html#cpp.line

(definition of digit-sequence):
     http://www.kuzbass.ru:8086/docs/isocpp/lex.html#lex.fcon

In addition, string escapes are allowed in CPP:
     http://www.kuzbass.ru:8086/docs/isocpp/lex.html#lex.string
Oct 13 2004
parent reply "Thomas Kuehne" <eisvogel users.sourceforge.net> writes:
Burton Radons schrieb:

 It's defined as taking Integer, which is defined earlier in the lexical
 page.  Integer literals are not signed.



I think the signed issue was simply ommited from the documentation. If integer
literals are un-signed then I don't know why the code
below is accepted by the compiler.

code:
#
# static int array[]=[-1,+2,-3];
#

Thomas
Oct 14 2004
parent Stewart Gordon <smjg_1998 yahoo.com> writes:
Thomas Kuehne wrote:

<snip>

 I think the signed issue was simply ommited from the documentation.  
 If integer literals are un-signed then I don't know why the code 
 below is accepted by the compiler.
 
 code:
 #
 # static int array[]=[-1,+2,-3];



compile-time constant != literal

Stewart.
Oct 14 2004