将文件中的c++代码转换为c语言代码
时间: 2024-11-09 08:30:38 浏览: 16
将C++代码转换为C语言代码需要进行一些结构调整和函数替换。以下是将提供的C++代码转换为C语言代码的示例:
### 转换后的C语言代码
```c
#include <stdio.h>
#include <string.h>
#define MAX_SIZE 100
// 定义链表节点结构体
typedef struct Node {
char val;
struct Node *next;
} Node;
// 定义栈结构体
typedef struct Stack {
Node *top_ptr;
} Stack;
// 初始化栈
void init_stack(Stack *stack) {
stack->top_ptr = NULL;
}
// 判断栈是否为空
int is_empty(Stack *stack) {
return stack->top_ptr == NULL;
}
// 获取栈顶元素
char top(Stack *stack) {
return stack->top_ptr->val;
}
// 入栈操作
void push(Stack *stack, char c) {
Node *new_node = (Node *)malloc(sizeof(Node));
new_node->val = c;
new_node->next = stack->top_ptr;
stack->top_ptr = new_node;
}
// 出栈操作
int pop(Stack *stack) {
if (is_empty(stack)) return 0;
Node *to_be_deleted = stack->top_ptr;
stack->top_ptr = stack->top_ptr->next;
free(to_be_deleted);
return 1;
}
// 清空栈
void clear(Stack *stack) {
while (stack->top_ptr) {
Node *tmp = stack->top_ptr;
stack->top_ptr = stack->top_ptr->next;
free(tmp);
}
}
// 字符串反转函数
void reversestr(char str[], int length) {
int start = 0;
int end = length - 1;
while (start < end) {
char temp = str[start];
str[start] = str[end];
str[end] = temp;
start++;
end--;
}
}
// 将字符串压入栈中(逆序)
void invert(Stack *sta, char sentence[]) {
int len = strlen(sentence);
for (int i = len - 1; i >= 0; --i) {
push(sta, sentence[i]);
}
}
// 将字符串压入栈中(正序)
void reverse_invert(Stack *sta, char sentence[]) {
int len = strlen(sentence);
for (int i = 0; i <= len - 1; ++i) {
push(sta, sentence[i]);
}
}
// 检查并处理字符
void check(Stack *sta, char ch, int index, char test[26][MAX_SIZE]) {
char word[MAX_SIZE];
int voca_val;
char final[MAX_SIZE];
printf("请输入%c字符的解释: ", ch);
scanf("%s", word);
for (int i = 0; i < strlen(word); i++) {
voca_val = word[i];
if (isupper(voca_val) && test[voca_val - 'A'][0] == '\0') {
if (voca_val - 'A' != index) {
Stack new_stk;
init_stack(&new_stk);
check(&new_stk, word[i], voca_val - 'A', test);
}
}
if (isupper(voca_val) && test[voca_val - 'A'][0] != '\0') {
reverse_invert(sta, test[voca_val - 'A']);
} else {
push(sta, word[i]);
}
}
int i = 0;
while (!is_empty(sta)) {
char tmp = top(sta);
pop(sta);
final[i] = tmp;
i++;
}
reversestr(final, i);
int j = 0;
while (j < i) {
test[index][j] = final[j];
j++;
}
test[index][j] = '\0';
}
int main() {
char test[26][MAX_SIZE];
char language[MAX_SIZE];
char in_brackets[MAX_SIZE];
char translated_in_bra[MAX_SIZE];
char translation[MAX_SIZE];
int i, j;
int flag = 0;
for (i = 0; i < 26; ++i) {
test[i][0] = '\0';
}
scanf("%s", language);
int lang_length = strlen(language);
Stack translated_language;
init_stack(&translated_language);
Stack final_interp;
init_stack(&final_interp);
for (i = 0; i < lang_length; i++) {
int Char = language[i];
if (isupper(Char)) {
if (test[Char - 'A'][0] == '\0') {
check(&final_interp, language[i], Char - 'A', test);
}
}
}
reverse_invert(&translated_language, language);
i = 0;
j = 0;
while (!is_empty(&translated_language)) {
char tmp = top(&translated_language);
pop(&translated_language);
if (isupper(tmp)) {
reverse_invert(&translated_language, test[tmp - 'A']);
} else if (tmp == ')') {
flag = 1;
} else if (tmp == '(') {
flag = 0;
int in_brackets_length = strlen(in_brackets);
int counter1 = 0;
int counter2 = 0;
while (counter1 != in_brackets_length) {
translated_in_bra[counter2] = in_brackets[in_brackets_length - 1];
if (counter1 != (in_brackets_length - 1)) {
translated_in_bra[counter2 + 1] = in_brackets[counter1];
}
counter1 = counter1 + 1;
counter2 = counter2 + 2;
}
reverse_invert(&translated_language, translated_in_bra);
} else {
if (flag) {
in_brackets[i] = tmp;
i = i + 1;
}
if (!flag) {
translation[j] = tmp;
j++;
}
}
}
reversestr(translation, j);
for (i = 0; i < j; i++) {
printf("%c", translation[i]);
}
return 0;
}
```
### 主要调整点:
1. **数据结构**:将C++类 `Stack` 和 `node` 结构体转换为C语言中的结构体,并使用指针来管理内存。
2. **成员函数**:将C++类的方法转换为C语言中的函数,并传递结构体指针作为参数。
3. **动态内存分配**:在C语言中使用 `malloc` 和 `free` 来管理动态内存。
4. **输入输出**:将C++的 `cin` 和 `cout` 替换为C语言的 `scanf` 和 `printf`。
5. **字符串处理**:使用C语言的标准字符串处理函数如 `strlen` 和 `strcpy`。
通过这些调整,原始的C++代码被成功转换为C语言代码。
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