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| #include <iostream>
#include <cstring>
#define PRINT_DEBUG std::cout << "Debug:" << std::endl << color_name << std::endl << long_name << std::endl << other_name << std::endl;
const size_t g_MAX_STR_LEN = 15;
struct t_name {
public:
t_name() { reset(); }
public:
enum t_state {
STATE_NOT_INIT = 0,
STATE_NAME,
STATE_OK
};
public:
bool set_name(char* input_name, size_t input_name_len) {
bool result;
if (input_name != NULL) {
if (input_name_len <= g_MAX_STR_LEN) {
strncpy(str, input_name, input_name_len);
str_len = input_name_len;
} else {
strncpy(str, input_name, g_MAX_STR_LEN);
str_len = g_MAX_STR_LEN;
}
str[str_len] = '\0';
state = t_name::STATE_NAME;
result = true;
} else {
result = false;
}
return result;
}
bool set_level(size_t input_level) {
bool result;
if (state >= STATE_NAME) {
size_t number_len, number;
number_len = 1;
number = input_level;
while(number > 9) {
++number_len;
number = (number / 10);
}
if ((str_len + number_len + 1) <= g_MAX_STR_LEN) {
size_t count_tmp;
char digit;
str[str_len] = ' ';
str_len += 1;
count_tmp = (str_len + number_len);
str[count_tmp] = '\0';
number = input_level;
while(number > 9) {
digit = number - ((number / 10) * 10);
number = (number / 10);
str[count_tmp - 1] = (digit + '0');
--count_tmp;
}
str[str_len] = (number + '0');
str_len += number_len;
level = input_level;
state = t_name::STATE_OK;
result = true;
} else {
result = false;
}
} else {
result = false;
}
return result;
}
bool set(char* input_name, size_t input_name_len, size_t input_level) {
bool result;
result = set_name(input_name, input_name_len);
if (result) { result = set_level(input_level); }
return result;
}
void reset() {
str_len = 0;
level = 0;
state = t_name::STATE_NOT_INIT;
str[0] = '\0';
}
public:
friend std::ostream& operator<<(std::ostream&, t_name&);
private:
char str[g_MAX_STR_LEN + 1];
size_t str_len;
size_t level;
t_state state;
};
std::ostream& operator<<(std::ostream& os, t_name& name) {
switch(name.state) {
case t_name::STATE_NOT_INIT:
os << "name: [not init]";
break;
case t_name::STATE_NAME:
os << "name: " << name.str << " (len: " << name.str_len << ")";
break;
case t_name::STATE_OK:
os << "name and level: " << name.str << " (len: " << name.str_len << ", level: " << name.level << ")";
break;
}
return os;
}
int main (int argc, char** argv)
{
t_name color_name, long_name, other_name;
PRINT_DEBUG std::cout << std::endl;
if (!color_name.set((char*) "gray", strlen("gray"), 9768)) { std::cout << "main - warning: color_name.set false" << std::endl; }
if (!long_name.set_name((char*) "MediumSpringGreen", strlen("MediumSpringGreen"))) { std::cout << "main - warning: long_name.set_name false" << std::endl; }
if (!long_name.set_level(56)) { std::cout << "main - warning: long_name.set_level false" << std::endl; }
if (!other_name.set_name((char*) "LavenderBlush", strlen("LavenderBlush"))) { std::cout << "main - warning: other_name.set_name false" << std::endl; }
if (!other_name.set_level(2)) { std::cout << "main - warning: other_name.set_level [1] false" << std::endl; }
if (!other_name.set_level(84)) { std::cout << "main - warning: other_name.set_level [2] false" << std::endl; }
std::cout << std::endl; PRINT_DEBUG
return 0;
} |
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