nestlog: + ex2 + expand README.md

example/CMakeLists.txt

@@ -8,6 +8,7 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE INTERNAL "")
 #include(cmake/FindSphinx.cmake)
 
 add_subdirectory(ex1)
+add_subdirectory(ex2)
 
 # ----------------------------------------------------------------
 # make standard directories for std:: includes explicit

example/ex2/CMakeLists.txt

@@ -0,0 +1,3 @@
+add_executable(ex2 ex2.cpp)
+
+target_include_directories(ex2 PUBLIC ${PROJECT_SOURCE_DIR}/include)

example/ex2/ex2.cpp

@@ -0,0 +1,27 @@
+/* examples ex2/ex2.cpp */
+
+#include "nestlog/scope.hpp"
+
+int
+fib(int n) {
+    XO_SCOPE(log);
+
+    int retval = 1;
+
+    if (n >= 2)
+        retval = fib(n - 1) + fib(n - 2);
+
+    log("result ", ":retval ", retval);
+
+    return retval;
+}
+
+int
+main(int argc, char ** argv) {
+    XO_SCOPE(log);
+
+    int n = 4;
+    int fn = fib(n);
+
+    log(":n ", n, " :fib(n) ", fn);
+}