update

codingStyleIdioms/3_RAII/c_example.cpp

@@ -0,0 +1,19 @@
+//
+// Created by light on 19-12-12.
+//
+#include <stdio.h>
+#include <string.h>
+#include <malloc.h>
+int main() {
+    char *str = (char *) malloc(7);
+    strcpy(str, "toptal");
+    printf("char array = \"%s\" @ %u\n", str, str);
+
+    str = (char *) realloc(str, 11);
+    strcat(str, ".com");
+    printf("char array = \"%s\" @ %u\n", str, str);
+
+    free(str);
+
+    return(0);
+}