string_from_vector_of_char.cpp

keineahnung2345 · web-flow · commit 70018ee66975 · 2021-07-25T11:34:10.000+08:00
diff --git a/string_from_vector_of_char.cpp b/string_from_vector_of_char.cpp
@@ -0,0 +1,27 @@
+#include <iostream>
+#include <string>
+#include <vector>
+#include <algorithm>
+
+using namespace std;
+
+//https://stackoverflow.com/questions/37022167/copy-null-terminated-char-array-to-stdstring-respecting-buffer-length
+
+int main()
+{
+    const char arr[100] = "hello world"; 
+    const vector<char> vc(arr, arr+sizeof(arr));
+    
+    str = string(vc.begin(), vc.end());
+    cout << "last char: " << str.back() << endl;
+    
+    vector<char>::const_iterator it = find(vc.begin(), vc.end(), '\0');
+    string str(vc.begin(), it);
+    cout << "last char: " << str.back() << endl;
+    return 0;
+}
+
+/**
+last char: d
+last char: 
+**/
