c++ - 传递枚举数组是什么意思？

Question

我们可以将枚举作为数组或指针传递吗？我在互联网上的某个地方听到过这类问题。所以我想检查一下那是什么意思。我们该怎么做？例子？

Answer 1

就像任何其他数组一样:

#include <stdio.h>

enum colour {
    WHITE,
    RED,
    ORANGE,
    YELLOW,
    GREEN,
    BLUE,
    INDIGO,
    VIOLET,
    BLACK
};

char *colour_names[] = {
    "WHITE",
    "RED",
    "ORANGE",
    "YELLOW",
    "GREEN",
    "BLUE",
    "INDIGO",
    "VIOLET",
    "BLACK"
};

void show_colours(enum colour colours[], int count) {
    int i;

    for (i = 0; i < count; ++i) {
        printf("%s ", colour_names[(int)colours[i]]);
    }
    printf("\n");
}

int main(int argc, char **argv) {
    enum colour estonia[] = {BLUE, BLACK, WHITE};
    show_colours(estonia, 3);
    return 0;
}

输出:

BLUE BLACK WHITE