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Diffstat (limited to 'README.EXT')
| -rw-r--r-- | README.EXT | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/README.EXT b/README.EXT index 756f46f98b..bfea6001c2 100644 --- a/README.EXT +++ b/README.EXT @@ -482,6 +482,16 @@ After this function returned a non-zero value, *name is always a Symbol or a String, otherwise it is a String if the result is 0. The third function takes NUL-terminated C string, not Ruby VALUE. +You can retrieve Symbol from Ruby object (Symbol or String) given as +an argument by using + + rb_to_symbol(VALUE name) + rb_check_symbol(volatile VALUE *namep) + rb_check_symbol_cstr(const char *ptr, long len, rb_encoding *enc) + +These functions are similar to above functions except that these +return a Symbol instead of an ID. + You can convert C ID to Ruby Symbol by using VALUE ID2SYM(ID id) |