jaunes

HolidayTrip/Fundamentals/my_strings/my_strings.c

@@ -0,0 +1,66 @@
+#include "my_strings.h"
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+//' -> ' est un racc pour *rslt.data
+struct string *my_str_init(const char* s, size_t size){
+
+    struct string *rslt = malloc(sizeof(struct string));
+    if(rslt == NULL) return NULL;
+
+    if(size == 0 || s == NULL) {
+        rslt->data = NULL;
+        rslt->size = 0;
+    }
+    else{
+        rslt->data = malloc(size);
+        if(rslt->data == NULL){
+            free(rslt);
+            return NULL;
+        }
+
+        memcpy(rslt->data, s, size);
+        rslt->size = size;
+    }
+    return rslt;
+}
+
+void my_str_destroy(struct string *str){
+    
+    if(str == NULL) return;
+    
+    free(str->data);
+    free(str);
+}
+
+void my_str_puts(struct string *str){
+
+    if(str == NULL) return;
+ 
+
+    if(str->data == NULL || str->size == 0)printf("\n");
+   
+    for (size_t i = 0; i < str->size; i++) putchar(*((str->data) + i));
+}
+
+struct string *my_str_n_cat(struct string *str1, const char *str2, size_t str2_len){
+
+    if (str2 == NULL || str2_len == 0) return str1;
+
+    if (str1 == NULL){
+        struct string *rslt = my_str_init(str2, str2_len);
+        return rslt;
+    }
+
+    str1->data = realloc(str1->data, (str1->size + str2_len) * sizeof(char));
+    if(str1 == NULL) return str1;
+    
+    //printf("test");
+    int index = 0;
+    while (*(str2 + index)){
+        str1->data[str1->size + index] = str2[index];
+        index ++;
+    }
+    str1->size = str1->size + index;
+    return str1;
+}