Anonymní profil drizz – Programujte.com

Delam to v Netbeansech a cekal jsem, ze tohle tam maj poreseny, kdyz to dam prelozit z konsole tak to facha...

Ahoj mam problem s nasledujicim kodem:

#include <math.h>

int main(int argc, char** argv) {

    double radians = 45 * M_PI / 180;
    double result;

    result = cos(radians);

    return (0);

}

Hazi to chybu: main.c:12: undefined reference to `cos'

pokud to prepisu na napr:

result = cos(1.0);

tak vse funguje. Co s tim proboha je???

Diky, jeste bych se chtel zeptat, proc nefunguje nasledujici kod:

int main(int argc, char** argv) {
   
    vector<int>::pointer v = new vector<int>;
   
    v->push_back(2);
   
    for(int i=0; i < v->size(); i++){
        cout <<  (*v)[i] << endl;
    }
   
    delete v;
    return 0;
}

Chyby pri prekladu:

main.cc:28:34: error: cannot convert ‘std::vector<int>*’ to ‘int*’ in initialization
main.cc:30:8: error: request for member ‘push_back’ in ‘* v’, which is of non-class type ‘int’
main.cc:32:25: error: request for member ‘size’ in ‘* v’, which is of non-class type ‘int’
main.cc:33:24: error: invalid types ‘int[int]’ for array subscript

Diky

Mam nasledujici kod: 

int main(int argc, char** argv) {
   
    //vector<int>::pointer v = new vector<int>;
    vector<int>* v = new vector<int>;
   
    for(int i=0; i < v->size(); i++){
        cout << (int) v[i] << endl;
    }
   

    return 0;
}

ktery mi hazi chybu:

main.cc:33:26: error: invalid cast from type ‘std::vector<int>’ to type ‘int’

Nevite co je za problem? A proc existuje neco jako vector<int>::pointer a jak se to lisi od "normalnikho" pointeru. Diky.