stddef搜索路径

Author: 埃博拉酱

.vscode/c_cpp_properties.json

@@ -6,7 +6,8 @@
                 "${workspaceFolder}/src",
                 "${LOCALAPPDATA}/Arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino",
                 "${LOCALAPPDATA}/Arduino15/packages/arduino/hardware/avr/1.8.6/variants/mega",
-                "${LOCALAPPDATA}/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/avr/include"
+                "${LOCALAPPDATA}/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/avr/include",
+                "${LOCALAPPDATA}/Arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/lib/gcc/avr/7.3.0/include"
             ],
             "defines": [
                 "F_CPU=16000000L",

examples/UnitTests/String.cpp

@@ -0,0 +1,8 @@
+#include<string>
+void String()
+{
+  std::string S;
+  S.resize_and_overwrite(10,[](char*Pointer,size_t Capacity){
+    return Capacity;
+  });
+}

examples/UnitTests/UnitTests.ino

@@ -68,9 +68,11 @@ void Functional();
 extern std::unique_ptr<char[]> UPI;
 void Span(char C);
 void MapSet();
+void String();
 void loop() {
   FF();
   Functional();
   Span(UPI[0]);
   MapSet();
+  String();
 }