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[Bug c++/14430] constructors with rectroactively declared default argument not considered for conversions
- From: "bangerth at dealii dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Mar 2004 13:55:45 -0000
- Subject: [Bug c++/14430] constructors with rectroactively declared default argument not considered for conversions
- References: <20040304095124.14430.heinlein@informatik.uni-ulm.de>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From bangerth at dealii dot org 2004-03-04 13:55 -------
Confirmed, up to present mainline.
What I find really funny is what we get for this testcase from mainline:
g/x> /home/bangerth/bin/gcc-3.5-pre/bin/c++ -c x.cc
x.cc:4: error: conversion from `int' to non-scalar type `X' requested
x.cc:6: error: conversion from `int' to non-scalar type `X' requested
x.cc:12: error: declaration of `Y y1'
<internal>:0: error: conflicts with previous declaration `double y1(double)'
That seems totally bogus, since there is no use of 'double' in the entire
program. Turns out that gcc has a built-in for the bessel function y1(),
so y1 is a reserved name in the global scope. If you ask me, having functions
in the math library that consist of a single letter and a number is not
a very mature idea :-( To avoid this error, one therefore has to rename y1
to some other (unprotected) name.
W.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Known to fail| |2.95.3 3.2.3 3.3.3 3.4.0
| |3.5.0
Last reconfirmed|0000-00-00 00:00:00 |2004-03-04 13:55:44
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14430