From d058df8828b77fc90f563f2b70e8fbaf2e99bea2 Mon Sep 17 00:00:00 2001 From: rubidium Date: Fri, 23 Apr 2010 14:56:14 +0000 Subject: [PATCH] (svn r19698) -Add: macros to get the size/length of a variable within a class --- src/stdafx.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/src/stdafx.h b/src/stdafx.h index ccda374397..9777e1fa9d 100644 --- a/src/stdafx.h +++ b/src/stdafx.h @@ -371,6 +371,22 @@ assert_compile(sizeof(uint8) == 1); #define offsetof(s, m) cpp_offsetof(s, m) #endif /* offsetof */ +/** + * Gets the size of a variable within a class. + * @param base The class the variable is in. + * @param variable The variable to get the size of. + * @return the size of the variable + */ +#define cpp_sizeof(base, variable) (sizeof(((base*)8)->variable)) + +/** + * Gets the length of an array variable within a class. + * @param base The class the variable is in. + * @param variable The array variable to get the size of. + * @return the length of the array + */ +#define cpp_lengthof(base, variable) (cpp_sizeof(base, variable) / cpp_sizeof(base, variable[0])) + /* take care of some name clashes on MacOS */ #if defined(__APPLE__)