Enumerator Random

Question

I’m having trouble making an enumerator tube.

enum Notas {A=10, B=22, C=31, D=44, E=56};

There is this solution, but I need the values of the Enumerators and here it is returning the rest of the calculation.

enum Notas {A=10, B=22, C=31, D=44, E=56, ULTIMO};


int teste = static_cast<Notas>(rand() % ULTIMO);

Answer 1

The problem seems to be that the possible values are not all valid. Instead of directly generating the random number, you will need a conversion.

Generate the number according to the amount of Notes elements. If you have 5 notes, from A to E, generate a number from 0 to 4 using the:

enum Notas {A=10, B=22, C=31, D=44, E=56, ULTIMO};
#define NUMERO_DE_NOTAS 5

int teste = static_cast<Notas>(rand() % NUMERO_DE_NOTAS);

After that, you use the test to enter a switch and with each value return the correct note. If it is 0, returns A, if it is 1, returns B, etc...