revision #1: 第 1 章增加了对 C++17 的支持

code/1/1.1.cpp

@@ -1,13 +1,19 @@
 //
 // 1.1.cpp
+//
+// chapter 1 introduction
 // c++1x tutorial
 //
 // created by changkun at changkun.de
 //
 
 #include "foo.h"
+#include <iostream>
+#include <functional>
 
 int main() {
-    add(1, 2);
+    [out = std::ref(std::cout << "Result from C code: " << add(1, 2))](){
+        out.get() << ".\n";
+    }();
     return 0;
 }

code/1/Makefile

@@ -1,6 +1,25 @@
+#
+# 1.1.cpp
+#
+# chapter 1 introduction
+# c++1x tutorial
+#
+# created by changkun at changkun.de
+#
+
+C = gcc
+CXX = g++
+
+SOURCE_C = foo.c
+OBJECTS_C = foo.o 
+
+SOURCE_CXX = 1.1.cpp
+
 TARGET = 1.1
+LDFLAGS_COMMON = -std=c++1z
+
 all:
-	gcc -c foo.c
-	g++ 1.1.cpp foo.o -o $(TARGET)
+	$(C) -c $(SOURCE_C)
+	$(CXX) $(SOURCE_CXX) $(OBJECTS_C) $(LDFLAGS_COMMON) -o $(TARGET)
 clean:
 	rm -rf *.o $(TARGET)

code/1/foo.c

@@ -1,11 +1,12 @@
 //
 // foo.c
+//
+// chapter 1 introduction
 // c++1x tutorial
 //
 // created by changkun at changkun.de
 //
 
-
 #include "foo.h"
 
 int add(int x, int y) {

code/1/foo.h

@@ -1,11 +1,12 @@
 //
 // foo.h
+//
+// chapter 1 introduction
 // c++1x tutorial
 //
 // created by changkun at changkun.de
 //
 
-
 #ifdef __cplusplus
 extern "C" {
 #endif