(RSTRING_LEN): defined for accessing string members.
(RSTRING_PTR): ditto.
* string.c: use RSTRING_LEN and RSTRING_PTR.
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(for constant reference).
* eval.c (rb_call0): use TMP_ALLOC() instead of allocating
a temporary array object.
* eval.c (eval): need not to protect $SAFE value.
[ruby-core:07177]
* error.c (Init_Exception): change NameError to direct subclass of
Exception so that default rescue do not handle it silently.
* struct.c (rb_struct_select): update RDoc description.
[ruby-core:7254]
* numeric.c (int_upto): return an enumerator if no block is
attached to the method.
* numeric.c (int_downto): ditto.
* numeric.c (int_dotimes): ditto.
* enum.c (enum_first): new method Enumerable#first to take first n
element from an enumerable.
* enum.c (enum_group_by): new method Enumerable#group_by that
groups enumerable values according to their block values.
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OpenSSL::Config#each. it iterates with section name, field name
and value.
* ext/openssl/ossl_config.c (Init_ossl_config): include Enumerable.
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if the specified value doesn't exist.
* lib/ext/openssl/ossl_conf.c (ossl_config_get_section): return
a empty hash if the specified section doesn't exist.
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libeay32.dll doesn't export functions defined in conf_api.h.
this workaround is to avoid link error.
* ext/openssl/ossl_config.c (ossl_config_initialize): ditto.
* ext/openssl/ossl_config.c (ossl_config_add_value): ditto.
* ext/openssl/ossl_config.c (set_conf_section_i): should check
if the argument is Array.
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* ext/openssl/ossl_config.c: refine all with backward compatibility.
* ext/openssl/ossl_config.h: export GetConfigPtr() and DupConfigPtr().
* ext/openssl/ossl_x509.c: added new constants under X509 module.
DEFAULT_CERT_AREA, DEFAULT_CERT_DIR, DEFAULT_CERT_FILE,
DEFAULT_CERT_DIR_ENV, DEFAULT_CERT_FILE_ENV and DEFAULT_PRIVATE_DIR.
* ext/openssl/ossl_x509ext.c (ossl_x509extfactory_free): don't free
the members of the struct. it's left to GC.
* ext/openssl/ossl_x509ext.c (ossl_x509_set_config): add for config=.
* ext/openssl/ossl_x509ext.c (Xossl_x509extfactory_initialize):
add attr readers: issuer_certificate, subject_certificate,
subject_request, crl and config.
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