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Another difference between gcc and clang
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Juha Nieminen
Nov 1, 2016, 3:07:10 AM11/1/16
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This piece of code, by itself, does not cause a compiler error with gcc6,
but does with clang:
//-------------------------------------------
template<typename T>
class C
{
public:
test(int, int);
};
//-------------------------------------------
clang says:
error: C++ requires a type specifier for all declarations
gcc says nothing and just accepts it. I wonder what it's thinking.
--- news://freenews.netfront.net/ - complaints: ne...@netfront.net ---
but does with clang:
//-------------------------------------------
template<typename T>
class C
{
public:
test(int, int);
};
//-------------------------------------------
clang says:
error: C++ requires a type specifier for all declarations
gcc says nothing and just accepts it. I wonder what it's thinking.
--- news://freenews.netfront.net/ - complaints: ne...@netfront.net ---
Alf P. Steinbach
Nov 1, 2016, 6:50:14 AM11/1/16
to
On 01.11.2016 08:06, Juha Nieminen wrote:
> This piece of code, by itself, does not cause a compiler error with gcc6,
> but does with clang:
>
> //-------------------------------------------
> template<typename T>
> class C
> {
> public:
> test(int, int);
> };
> //-------------------------------------------
>
> clang says:
> error: C++ requires a type specifier for all declarations
>
> gcc says nothing and just accepts it. I wonder what it's thinking.
It's thinking "implicit int".
> This piece of code, by itself, does not cause a compiler error with gcc6,
> but does with clang:
>
> //-------------------------------------------
> template<typename T>
> class C
> {
> public:
> test(int, int);
> };
> //-------------------------------------------
>
> clang says:
> error: C++ requires a type specifier for all declarations
>
> gcc says nothing and just accepts it. I wonder what it's thinking.
That's never been part of C++.
Cheers!,
- Alf
Joost
Nov 2, 2016, 12:08:40 PM11/2/16
to
Juha Nieminen <nos...@thanks.invalid> wrote:
> This piece of code, by itself, does not cause a compiler error with gcc6,
> but does with clang:
>
> //-------------------------------------------
> template<typename T>
> class C
> {
> public:
> test(int, int);
> };
> //-------------------------------------------
>
> clang says:
> error: C++ requires a type specifier for all declarations
>
> gcc says nothing and just accepts it. I wonder what it's thinking.
Did something change? The ancient 4.8.4 I have to use says this:
> This piece of code, by itself, does not cause a compiler error with gcc6,
> but does with clang:
>
> //-------------------------------------------
> template<typename T>
> class C
> {
> public:
> test(int, int);
> };
> //-------------------------------------------
>
> clang says:
> error: C++ requires a type specifier for all declarations
>
> gcc says nothing and just accepts it. I wonder what it's thinking.
error: ISO C++ forbids declaration of 'test' with no type [-fpermissive]
which looks useful enough to me.
Christian Gollwitzer
Nov 2, 2016, 12:12:35 PM11/2/16
to
Am 02.11.16 um 17:08 schrieb Joost:
Maybe the error does not occur until you try to instantiate the
template? (I've got no current gcc to check now)
Christian
template? (I've got no current gcc to check now)
Christian
Öö Tiib
Nov 2, 2016, 1:38:07 PM11/2/16
to
OP is using and with what options.
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