#include <stdio.h>

typedef enum 
{
    value_1,
    value_2,
    value_3,
} MyEnum;

/*---------------------------------------------------------------------------*/
#ifndef NDEBUG
/*---------------------------------------------------------------------------*/

typedef struct 
{
    MyEnum val;
    const char *val_name;
} MyEnum_TxtMap;

static const MyEnum_TxtMap g_MyEnum_TxtMap[] =
{
    {value_1, "value_1"},
    {value_2, "value_2"},
    {value_3, "value_3"},
};

const char* MyEnum2Text(MyEnum val)
{
    const size_t map_sz = sizeof(g_MyEnum_TxtMap) / sizeof(*g_MyEnum_TxtMap);
    size_t n = 0;
    
    for (; n < map_sz; ++n)
    {
        if (g_MyEnum_TxtMap[n].val == val)
            return g_MyEnum_TxtMap[n].val_name;
    }//for

    return "!!invalid MyEnum val!!";
}

/*---------------------------------------------------------------------------*/
#else /* NDEBUG */
/*---------------------------------------------------------------------------*/

const char* MyEnum2Text(MyEnum val) 
{
    return "!!non-debug build!!";
}

/*---------------------------------------------------------------------------*/
#endif /* NDEBUG */
/*---------------------------------------------------------------------------*/

int main()
{
    MyEnum val = value_2;

    printf("val = %s\n", MyEnum2Text(val));

    return 0;
}