cpp/openttd-patchpack/source Changeset - r15062:3ce4d3cd6f51

Changeset - r15062:3ce4d3cd6f51

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rubidium - 14 years ago 2010-04-23 14:56:14
rubidium@openttd.org

(svn r19698) -Add: macros to get the size/length of a variable within a class

1 file changed with 16 insertions and 0 deletions:

src/stdafx.h

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src/stdafx.h

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@@ @@ -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__)

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