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ruby--ruby/ext/-test-/string/capacity.c
naruse d14f0cfd16 Add tests about String's internal capacity
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53671 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2016-01-27 11:37:02 +00:00

17 lines
353 B
C

#include "ruby.h"
#include "internal.h"
static VALUE
bug_str_capacity(VALUE klass, VALUE str)
{
return
STR_EMBED_P(str) ? INT2FIX(RSTRING_EMBED_LEN_MAX) : \
STR_SHARED_P(str) ? INT2FIX(0) : \
LONG2FIX(RSTRING(str)->as.heap.aux.capa);
}
void
Init_capacity(VALUE klass)
{
rb_define_singleton_method(klass, "capacity", bug_str_capacity, 1);
}