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g++ mode for c++ 11
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bilsch
Mar 3, 2015, 6:21:38 AM3/3/15
to
I'm using g++ on Ubuntu 14.04. I found a site that has a huge reference
for c++ and c commands. The command descriptions include sample
demonstration programs. This will be a valuable resource because I don't
know c++ - I am a C programmer. I need to learn some C++. So I tried to
compile one of the demonstration programs (listed below) but I got the
following error from g++ that comes with Ubuntu:
error: range-based ‘for’ loops are not allowed in C++98 mode
I think the site is current with c++ 11. It looks like g++ is current
with C++98. How do I get g++ current with C++ 11?
#include <iostream>
#include <cstring>
int main()
{
const char* src = "hi";
char dest[6] = {'a', 'b', 'c', 'd', 'e', 'f'};;
std::strncpy(dest, src, 5);
std::cout << "The contents of dest are: ";
for (char c : dest) {
if (c) {
std::cout << c << ' ';
} else {
std::cout << "\\0" << ' ';
}
}
std::cout << '\n';
}
for c++ and c commands. The command descriptions include sample
demonstration programs. This will be a valuable resource because I don't
know c++ - I am a C programmer. I need to learn some C++. So I tried to
compile one of the demonstration programs (listed below) but I got the
following error from g++ that comes with Ubuntu:
error: range-based ‘for’ loops are not allowed in C++98 mode
I think the site is current with c++ 11. It looks like g++ is current
with C++98. How do I get g++ current with C++ 11?
#include <iostream>
#include <cstring>
int main()
{
const char* src = "hi";
char dest[6] = {'a', 'b', 'c', 'd', 'e', 'f'};;
std::strncpy(dest, src, 5);
std::cout << "The contents of dest are: ";
for (char c : dest) {
if (c) {
std::cout << c << ' ';
} else {
std::cout << "\\0" << ' ';
}
}
std::cout << '\n';
}
Wouter van Ooijen
Mar 3, 2015, 6:27:48 AM3/3/15
to
bilsch schreef op 03-Mar-15 om 12:20 PM:
Wouter
> I'm using g++ on Ubuntu 14.04. I found a site that has a huge reference
> for c++ and c commands. The command descriptions include sample
> demonstration programs. This will be a valuable resource because I don't
> know c++ - I am a C programmer. I need to learn some C++. So I tried to
> compile one of the demonstration programs (listed below) but I got the
> following error from g++ that comes with Ubuntu:
>
> error: range-based ‘for’ loops are not allowed in C++98 mode
>
> I think the site is current with c++ 11. It looks like g++ is current
> with C++98. How do I get g++ current with C++ 11?
-std=c++11
> for c++ and c commands. The command descriptions include sample
> demonstration programs. This will be a valuable resource because I don't
> know c++ - I am a C programmer. I need to learn some C++. So I tried to
> compile one of the demonstration programs (listed below) but I got the
> following error from g++ that comes with Ubuntu:
>
> error: range-based ‘for’ loops are not allowed in C++98 mode
>
> I think the site is current with c++ 11. It looks like g++ is current
> with C++98. How do I get g++ current with C++ 11?
Wouter
bilsch
Mar 3, 2015, 6:41:10 AM3/3/15
to
> -std=c++11
>
> Wouter
Thank you. Bill S.
Scott Lurndal
Mar 3, 2015, 9:15:33 AM3/3/15
to
bilsch <kin...@comcast.net> writes:
>I'm using g++ on Ubuntu 14.04. I found a site that has a huge reference
>for c++ and c commands. The command descriptions include sample
>demonstration programs. This will be a valuable resource because I don't
>know c++ - I am a C programmer. I need to learn some C++. So I tried to
>compile one of the demonstration programs (listed below) but I got the
>following error from g++ that comes with Ubuntu:
>
> error: range-based ‘for’ loops are not allowed in C++98 mode
man pages are your friend:
>I'm using g++ on Ubuntu 14.04. I found a site that has a huge reference
>for c++ and c commands. The command descriptions include sample
>demonstration programs. This will be a valuable resource because I don't
>know c++ - I am a C programmer. I need to learn some C++. So I tried to
>compile one of the demonstration programs (listed below) but I got the
>following error from g++ that comes with Ubuntu:
>
> error: range-based ‘for’ loops are not allowed in C++98 mode
bash$ man g++ | col -b | grep -i c++11
...
GNU dialect of -std=c++11. Support for C++11 is still
see the description of the -std parameter.
Jorgen Grahn
Mar 7, 2015, 2:44:54 PM3/7/15
to
On Tue, 2015-03-03, Scott Lurndal wrote:
> bilsch <kin...@comcast.net> writes:
...
documentation format, but that's where the full compiler documentation
is, so you need to have it and be able to navigate it.
/Jorgen
--
// Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .
> bilsch <kin...@comcast.net> writes:
...
>>compile one of the demonstration programs (listed below) but I got the
>>following error from g++ that comes with Ubuntu:
>>
>> error: range-based ???for??? loops are not allowed in C++98 mode
>>following error from g++ that comes with Ubuntu:
>>
>
> man pages are your friend:
>
> bash$ man g++ | col -b | grep -i c++11
Yes, but with GCC you really need the info pages. Not my favorite
> man pages are your friend:
>
> bash$ man g++ | col -b | grep -i c++11
documentation format, but that's where the full compiler documentation
is, so you need to have it and be able to navigate it.
/Jorgen
--
// Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .
David Brown
Mar 8, 2015, 3:57:10 PM3/8/15
to
On 07/03/15 20:44, Jorgen Grahn wrote:
> On Tue, 2015-03-03, Scott Lurndal wrote:
>> bilsch <kin...@comcast.net> writes:
> ...
>>> compile one of the demonstration programs (listed below) but I got the
>>> following error from g++ that comes with Ubuntu:
>>>
>>> error: range-based ???for??? loops are not allowed in C++98 mode
>>
>> man pages are your friend:
>>
>> bash$ man g++ | col -b | grep -i c++11
>
> Yes, but with GCC you really need the info pages. Not my favorite
> documentation format, but that's where the full compiler documentation
> is, so you need to have it and be able to navigate it.
>
> /Jorgen
>
I have never found "info" pages to be any use. The gcc manuals are fine:
> On Tue, 2015-03-03, Scott Lurndal wrote:
>> bilsch <kin...@comcast.net> writes:
> ...
>>> compile one of the demonstration programs (listed below) but I got the
>>> following error from g++ that comes with Ubuntu:
>>>
>>> error: range-based ???for??? loops are not allowed in C++98 mode
>>
>> man pages are your friend:
>>
>> bash$ man g++ | col -b | grep -i c++11
>
> Yes, but with GCC you really need the info pages. Not my favorite
> documentation format, but that's where the full compiler documentation
> is, so you need to have it and be able to navigate it.
>
> /Jorgen
>
<https://gcc.gnu.org/onlinedocs/>
Use the online html, html tarballs, or pdf files according to preference.
gcc also comes with a fairly good built in help (with "--help -v" as a
starting point) - recent versions let you get details of different
groups of command-line switches.
Jorgen Grahn
Mar 10, 2015, 1:39:58 PM3/10/15
to
On Sun, 2015-03-08, David Brown wrote:
> On 07/03/15 20:44, Jorgen Grahn wrote:
>> On Tue, 2015-03-03, Scott Lurndal wrote:
>>> bilsch <kin...@comcast.net> writes:
>> ...
>>>> compile one of the demonstration programs (listed below) but I got the
>>>> following error from g++ that comes with Ubuntu:
>>>>
>>>> error: range-based ???for??? loops are not allowed in C++98 mode
>>>
>>> man pages are your friend:
>>>
>>> bash$ man g++ | col -b | grep -i c++11
>>
>> Yes, but with GCC you really need the info pages. Not my favorite
>> documentation format, but that's where the full compiler documentation
>> is, so you need to have it and be able to navigate it.
> On 07/03/15 20:44, Jorgen Grahn wrote:
>> On Tue, 2015-03-03, Scott Lurndal wrote:
>>> bilsch <kin...@comcast.net> writes:
>> ...
>>>> compile one of the demonstration programs (listed below) but I got the
>>>> following error from g++ that comes with Ubuntu:
>>>>
>>>> error: range-based ???for??? loops are not allowed in C++98 mode
>>>
>>> man pages are your friend:
>>>
>>> bash$ man g++ | col -b | grep -i c++11
>>
>> Yes, but with GCC you really need the info pages. Not my favorite
>> documentation format, but that's where the full compiler documentation
>> is, so you need to have it and be able to navigate it.
> I have never found "info" pages to be any use. The gcc manuals are fine:
>
> <https://gcc.gnu.org/onlinedocs/>
Aren't those the same thing as the info pages, though?
>
> <https://gcc.gnu.org/onlinedocs/>
> Use the online html, html tarballs, or pdf files according to preference.
within Emacs which I'm using /anyway/ ... and the HTML stuff inherits
some of the bad aspects of the info documentation so you suffer from
it, to some degree, in either case.
And the main point was "there's important documentation for GCC which
isn't in the man pages".
> gcc also comes with a fairly good built in help (with "--help -v" as a
> starting point) - recent versions let you get details of different
> groups of command-line switches.
and it was better than I remembered it -- at least command-line
options and environment variables were properly documented, not just
listed with no explanation like I remembered them.
David Brown
Mar 10, 2015, 5:21:57 PM3/10/15
to
On 10/03/15 18:39, Jorgen Grahn wrote:
> On Sun, 2015-03-08, David Brown wrote:
>> On 07/03/15 20:44, Jorgen Grahn wrote:
>>> On Tue, 2015-03-03, Scott Lurndal wrote:
>>>> bilsch <kin...@comcast.net> writes:
>>> ...
>>>>> compile one of the demonstration programs (listed below) but I got the
>>>>> following error from g++ that comes with Ubuntu:
>>>>>
>>>>> error: range-based ???for??? loops are not allowed in C++98 mode
>>>>
>>>> man pages are your friend:
>>>>
>>>> bash$ man g++ | col -b | grep -i c++11
>>>
>>> Yes, but with GCC you really need the info pages. Not my favorite
>>> documentation format, but that's where the full compiler documentation
>>> is, so you need to have it and be able to navigate it.
>
>> I have never found "info" pages to be any use. The gcc manuals are fine:
>>
>> <https://gcc.gnu.org/onlinedocs/>
>
> Aren't those the same thing as the info pages, though?
It is quite possible that they are the same - I don't find info pages
> On Sun, 2015-03-08, David Brown wrote:
>> On 07/03/15 20:44, Jorgen Grahn wrote:
>>> On Tue, 2015-03-03, Scott Lurndal wrote:
>>>> bilsch <kin...@comcast.net> writes:
>>> ...
>>>>> compile one of the demonstration programs (listed below) but I got the
>>>>> following error from g++ that comes with Ubuntu:
>>>>>
>>>>> error: range-based ???for??? loops are not allowed in C++98 mode
>>>>
>>>> man pages are your friend:
>>>>
>>>> bash$ man g++ | col -b | grep -i c++11
>>>
>>> Yes, but with GCC you really need the info pages. Not my favorite
>>> documentation format, but that's where the full compiler documentation
>>> is, so you need to have it and be able to navigate it.
>
>> I have never found "info" pages to be any use. The gcc manuals are fine:
>>
>> <https://gcc.gnu.org/onlinedocs/>
>
> Aren't those the same thing as the info pages, though?
useful because the format is terrible and navigation is difficult, not
because the information contained is bad. HTML format is great for
jumping around, and for having multiple tabs with different parts of the
documentation open at once. PDF format is great when you want to read
through documentation like a book, search the whole thing, or print out
pages. I therefore have not bothered looking at the gcc info pages.
>
>> Use the online html, html tarballs, or pdf files according to preference.
>
> It's an individual preference. I hate info, but at least I can use it
> within Emacs which I'm using /anyway/ ... and the HTML stuff inherits
> some of the bad aspects of the info documentation so you suffer from
> it, to some degree, in either case.
must like info!
However, /you/ were the one who said you didn't like info, but felt you
had to use it to get the information you needed - I was just trying to
be helpful by recommending alternative formats with (apparently) the
same information.
>
> And the main point was "there's important documentation for GCC which
> isn't in the man pages".
>
>> gcc also comes with a fairly good built in help (with "--help -v" as a
>> starting point) - recent versions let you get details of different
>> groups of command-line switches.
>
> Never tried it. But I should add that I looked at the man page now,
> and it was better than I remembered it -- at least command-line
> options and environment variables were properly documented, not just
> listed with no explanation like I remembered them.
>
recent versions of gcc.
Jorgen Grahn
Mar 10, 2015, 6:02:41 PM3/10/15
to
On Tue, 2015-03-10, David Brown wrote:
> On 10/03/15 18:39, Jorgen Grahn wrote:
>> On Sun, 2015-03-08, David Brown wrote:
...
> On 10/03/15 18:39, Jorgen Grahn wrote:
>> On Sun, 2015-03-08, David Brown wrote:
>>> Use the online html, html tarballs, or pdf files according to preference.
>>
>> It's an individual preference. I hate info, but at least I can use it
>> within Emacs which I'm using /anyway/ ... and the HTML stuff inherits
>> some of the bad aspects of the info documentation so you suffer from
>> it, to some degree, in either case.
>
> Indeed it is a matter of personal preference - I guess /some/ people
> must like info!
> However, /you/ were the one who said you didn't like info, but felt you
> had to use it to get the information you needed - I was just trying to
> be helpful by recommending alternative formats with (apparently) the
> same information.
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