variadic template function.

elloop · elloop · commit 29753603653b · 2015-03-27T07:33:12.000+08:00
diff --git a/understanding-c++11/variadic_template.h b/understanding-c++11/variadic_template.h
@@ -96,7 +96,8 @@ void Printf( const char * s, T val, Args...args ) {
     while ( *s ) {
         if (*s == '%' && *++s != '%')
         {
-            std::cout << val;               // notice: val's type is known.
+            // val's type is known. not like va_arg(args, type).
+            std::cout << val;              
             return Printf( ++s, args... );
         }
         std::cout << *s++;

Original file line number	Diff line number	Diff line change
`@@ -96,7 +96,8 @@ void Printf( const char * s, T val, Args...args ) {`
`96`	`96`	`while ( *s ) {`
`97`	`97`	`if (s == '%' && ++s != '%')`
`98`	`98`	`{`
`99`		`- std::cout << val; // notice: val's type is known.`
	`99`	`+ // val's type is known. not like va_arg(args, type).`
	`100`	`+ std::cout << val;`
`100`	`101`	`return Printf( ++s, args... );`
`101`	`102`	`}`
`102`	`103`	`std::cout << *s++;`