diff options
Diffstat (limited to 'include/ruby/backward/2/stdarg.h')
| -rw-r--r-- | include/ruby/backward/2/stdarg.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/include/ruby/backward/2/stdarg.h b/include/ruby/backward/2/stdarg.h index 5c5e1b31ce..08659fee47 100644 --- a/include/ruby/backward/2/stdarg.h +++ b/include/ruby/backward/2/stdarg.h @@ -17,7 +17,7 @@ * recursively included from extension libraries written in C++. * Do not expect for instance `__VA_ARGS__` is always available. * We assume C99 for ruby itself but we don't assume languages of - * extension libraries. They could be written in C++98. + * extension libraries. They could be written in C++98. * @brief Defines old #_ * * Nobody should ever use these macros any longer. No known compilers lack @@ -25,6 +25,10 @@ */ #undef _ +/** + * @deprecated Nobody practically needs this macro any longer. + * @brief This was a transition path from K&R to ANSI. + */ #ifdef HAVE_PROTOTYPES # define _(args) args #else @@ -32,12 +36,30 @@ #endif #undef __ +/** + * @deprecated Nobody practically needs this macro any longer. + * @brief This was a transition path from K&R to ANSI. + */ #ifdef HAVE_STDARG_PROTOTYPES # define __(args) args #else # define __(args) () #endif +/** + * Functions declared using this macro take arbitrary arguments, including + * void. + * + * ```CXX + * void func(ANYARGS); + * ``` + * + * This was a necessary evil when there was no such thing like function + * overloading. But it is the 21st century today. People generally need not + * use this. Just use a granular typed function. + * + * @see ruby::backward::cxxanyargs + */ #ifdef __cplusplus #define ANYARGS ... #else |