C语言详细分析讲解关键字enum与sizeof及typedef的用法

#include<stdio.h>
 
enum
{
    ARRAY_SIZE = 10
};
 
enum Color
{
    RED = 0x00FF0000,
    GREEN = 0x0000FF00,
    BLUE = 0x000000FF
};
 
void PrintColor(enum Color c)
{
    switch (c)
    {
        case RED:
            printf("Color: RED (0x%08x)\n", c);
            break;
        case GREEN:
            printf("color: GREEN (0x%08X)\n", c);
            break;
        case BLUE:
            printf("Color: BLUE (0x%08X)\n", c);
            break;
    }
}
 
void InitArray(int array[])
{
    int i = 0;
    
    for (i = 0; i < ARRAY_SIZE; i++)
    {
        array[i] = i + 1;
    }
}
 
void PrintArray(int array[])
{
    int i = 0;
    
    for (i = 0; i < ARRAY_SIZE; i++)
    {
        printf("%d\n", array[i]);
    }
}
 
int main()
{
    enum Color c = GREEN;
    
    int array[ARRAY_SIZE] = {0};
    
    PrintColor(c);
    
    InitArray(array);
    
    PrintArray(array);
    
    return 0;
}

#include<stdio.h>
 
int f()
{
    printf("Autumn Ze");
    
    return 0;
}
 
int main()
{
    int var = 0;
    
    int size = sizeof(var++);
    
    printf("var = %d, size = %d\n", var, size);
    
    size = sizeof(f());
    
    printf("size = %d\n", size);
    
    return 0;
}

#include<stdio.h>
 
typedef int Int32;
 
struct _tag_point
{
    int x;
    int y;
};
 
typedef struct _tag_point Point;
 
typedef struct
{
    int length;
    int array[];
}SoftArray;
 
typedef struct _tag_list_node ListNode;
struct _tag_list_node
{
    ListNode* next;
};
 
int main()
{
    Int32 i = -100;
    //unsigned Int32 ii = 0;
    Point p;
    SoftArray* sa = NULL;
    ListNode* node = NULL;
    
    return 0;
}