CODEWITHSUNDEEP
c++vectorinitialization
user1853170
user1853170

Reputation: 75

Get error message when initialize vector in c++

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

Upvotes: 0

Views: 102

Answers (2)

hmjd
hmjd

Reputation: 121961

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));

Upvotes: 2

ecatmur
ecatmur

Reputation: 157314

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);

Upvotes: 0

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