Re: c++/8041: Array to pointer conversion in cast expression

["René Møller Fonseca" <fonseca@mip.sdu.dk>]

The following reply was made to PR c++/8041; it has been noted by GNATS.

From: =?ISO-8859-1?Q?Ren=E9_M=F8ller_Fonseca?= <fonseca@mip.sdu.dk>
To: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org,
	gcc-prs@gcc.gnu.org, austern@apple.com
Cc:  
Subject: Re: c++/8041: Array to pointer conversion in cast expression
Date: Fri, 14 Feb 2003 19:58:47 +0100

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8041
 
 This "implicit casting" problem seems to be related (checked with GCC 3.2 under GNU/Linux and Solaris).
 
 #include <iostream>
 
 using namespace std;
 
 class MyClass {
 public:
 
   template<size_t SIZE>
   MyClass(const int (&x)[SIZE]) throw() {
     cout << "int[" << SIZE << "]" << endl;
   }  
 
   template<size_t SIZE>
   MyClass(long (&x)[SIZE]) throw() {
     cout << "long[" << SIZE << "]" << endl;
   }
 };
 
 MyClass myIntFunction() throw() {
   static const int INT_ARRAY[999] = {}; // const
   return INT_ARRAY; // this fails to compile
   // GCC ERROR: conversion from `const int*' to non-scalar type `MyClass'
 }
 
 MyClass myLongFunction() throw() {
   static long LONG_ARRAY[1234] = {}; // mutable
   return LONG_ARRAY; // this fails to compile
   // GCC ERROR: conversion from `long int*' to non-scalar type `MyClass'
 }
 
 int main() {
   static const int INT_ARRAY[123] = {};
 
   MyClass a(INT_ARRAY); // this works
   MyClass b = INT_ARRAY; // this works
   
   myIntFunction();
   myLongFunction();
   return 0;
 }