Get error message when initialize vector in c++

Question

void FakeMas::initLSRKeys() {
    const char* lsrKeysInit[]= {
        "platform.enhancedmetadata.categories.baseurl",
        "platform.enhancedmetadata.eventresolution.baseurl",
        "platform.enhancedmetadata.image.baseurl",
        "platform.enhancedmetadata.ondemands.baseurl",
        "platform.enhancedmetadata.programmes.baseurl",
        "platform.enhancedmetadata.recommend.baseurl",
        "platform.enhancedmetadata.schedule.baseurl",
        "platform.enhancedmetadata.scheduleevents.baseurl",
        "platform.enhancedmetadata.search.baseurl",
        "platform.enhancedmetadata.serviceresolve.baseurl",
        "platform.enhancedmetadata.applicationresolve.baseurl",
        "platform.enhancedmetadata.suggestions.baseurl",
        "platform.enhancedmetadata.summaries.baseurl",
        "platform.enhancedmetadata.bootstrap.baseurl"
    };
    endpointLSRKey(lsrKeysInit, lsrKeysInit+14);
}

Then get

error: no match for call to '(std::__debug::vector<std::basic_string<char> >)
(const char* [14], const char**)'

anyone get any idea about this? THanks

What is endpointLSRKey?

Angew is no longer proud of SO
– Angew is no longer proud of SO

2013-01-11 10:48:56 +00:00
Commented Jan 11, 2013 at 10:48 — Angew is no longer proud of SO
– Angew is no longer proud of SO, Commented Jan 11, 2013 at 10:48

hmjd · Accepted Answer · 2013-01-11 11:41:47Z

2

That is not an initialization: use vector::assign() instead:

endPointLSRKey.assign(lsrKeysInit, lsrKeysInit+14);

Calculate the number of elements in lsrKeysInit instead of hard-coding the 14 (which would require updating if elements were removed or added from lsrKeysInit):

endPointLSRKey
    .assign(lsrKeysInit, 
            lsrKeysInit + (sizeof(lsrKeysInit)/sizeof(lsrKeysInit[0])));

If C++11 support, you can use std::begin() and std::end():

endPointLSRKey.assign(std::begin(lsrKeysInit), std::end(lsrKeysInit));

edited Jan 11, 2013 at 11:41

answered Jan 11, 2013 at 10:50

hmjd

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Comments

ecatmur · Accepted Answer · 2013-01-11 10:51:44Z

0

You can only use the form variable(arguments...) in an initializer (i.e. in a declaration). When assigning to a variable that already exists, use an assignment or in this case use assign:

endpointLSRKey.assign(lsrKeysInit, lsrKeysInit+14);

answered Jan 11, 2013 at 10:51

ecatmur

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1 Comment

Frerich Raabe Over a year ago

You should rather use sizeof(lsrKeysInit) / sizeof(*lsrKeysInit) instead of hardcoding 14.

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