Re: C++0x syntax question
Kelly Beard <[email protected]>
| Newsgroups | gmane.comp.lang.as400.c |
|---|---|
| Message-ID | <CAOvM2Su=RubzAi9v9ABRixNmYs94=T-hA+5qNhiPaauxoVeXZA@mail.gmail.com> |
per my question, this does seem to be a change in syntax in the language.
g++ is more clear and complete in it's error reporting. For the newer
stuff, the word "typename" should appear appear in front of the offending
line. The corrected code is:
#include <iostream>
#include <string>
#include <sstream>
#include <iomanip>
#include <vector>
#include <unistd.h>
using namespace std;
template<typename T> vector<T> split(const T & str, const T & delimiters)
{
vector<T> v;
typename T::size_type start = 0;
size_t pos = str.find_first_of(delimiters, start);
while (pos != T::npos) {
if (pos != start) { // ignore empty tokens
v.push_back(str.substr(start, pos - start));
}
start = pos + 1;
pos = str.find_first_of(delimiters, start);
}
if (start < str.length()) { // ignore trailing delimiter
v.push_back(str.substr(start, pos - start));
}
return v;
}
int main(int argc, char* argv[])
{
string str = "this,is,a,test, of whatever, like, ok.";
vector<string> v = split<string>(str, ", ");
for (int i = 0; i < v.size(); ++i) {
cout << v[i] << endl;
}
}
On Tue, Sep 12, 2017 at 10:38 AM, Kelly Beard <[email protected]>
wrote:
> Take away the *EXTENDED0X option and it compiles just fine.
>
> On Tue, Sep 12, 2017 at 10:21 AM, Mark S Waterbury <
> [email protected]> wrote:
>
>> Kelly,
>>
>> Did this code ever compile on IBM i under previous versions of the IBM
>> ILE C++ compiler?
>>
>> IBM does not strictly follow the ANSI standards for either C or C++ ...
>>
>> You could also install the open-source GCC compiler and it would probably
>> compile this code for you ... of course, the resulting object code would
>> run under PASE ...
>>
>> Mark
>>
>>
>> > On 9/12/2017 10:57 AM, Kelly Beard wrote:
>>
>>> I am attempting to compile the following code under the newer compiler
>>> under V7R3 and the LANGLVL *EXTENDED0X option enabled. I am using the
>>> 5799PTL 'icc' compiler front-end to do this. The command default for
>>> CRTCPPMOD has been altered to always have *EXTENDED0X on by default. I
>>> am
>>> getting this:
>>>
>>> "testme.cpp", line 14.18: CZP0130 (30) "start" is not declared.
>>>
>>> The offending line looks like:
>>>
>>> T::size_type start = 0;
>>>
>>> So, is there a change to the C++11 syntax here? Thanks in advance, as
>>> always. Here is the test program.
>>>
>>> #include <iostream>
>>> #include <string>
>>> #include <sstream>
>>> #include <iomanip>
>>> #include <vector>
>>> #include <unistd.h>
>>>
>>> using namespace std;
>>>
>>>
>>> template<typename T> vector<T> split(const T & str, const T & delimiters)
>>> {
>>> vector<T> v;
>>> T::size_type start = 0;
>>> size_t pos = str.find_first_of(delimiters, start);
>>> while (pos != T::npos) {
>>> if (pos != start) { // ignore empty tokens
>>> v.push_back(str.substr(start, pos - start));
>>> }
>>> start = pos + 1;
>>> pos = str.find_first_of(delimiters, start);
>>> }
>>> if (start < str.length()) { // ignore trailing delimiter
>>> v.push_back(str.substr(start, pos - start));
>>> }
>>> return v;
>>> }
>>>
>>>
>>> int main(int argc, char* argv[])
>>> {
>>> string str = "this,is,a,test, of whatever, like, ok.";
>>> vector<string> v = split<string>(str, ", ");
>>> for (int i = 0; i < v.size(); ++i) {
>>> cout << v[i] << endl;
>>> }
>>> }
>>>
>>>
>>>
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>>
>
>
> --
> Kelly Beard
>
--
Kelly Beard
--
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