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string.c: rb_enc_str_new_cstr

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* string.c (rb_enc_str_new_cstr): new function to create a string from
  the C-string pointer with the specified encoding.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42811 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2013-09-03 13:03:54 +00:00
parent ad6731b0f9
commit 5669902126
5 changed files with 30 additions and 0 deletions
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13
string.c
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@ -34,6 +34,7 @@
#undef rb_str_new_cstr
#undef rb_tainted_str_new_cstr
#undef rb_usascii_str_new_cstr
#undef rb_enc_str_new_cstr
#undef rb_external_str_new_cstr
#undef rb_locale_str_new_cstr
#undef rb_str_dup_frozen
@ -473,6 +474,18 @@ rb_usascii_str_new_cstr(const char *ptr)
return str;
}
VALUE
rb_enc_str_new_cstr(const char *ptr, rb_encoding *enc)
{
if (!ptr) {
rb_raise(rb_eArgError, "NULL pointer given");
}
if (rb_enc_mbminlen(enc) != 1) {
rb_raise(rb_eArgError, "wchar encoding given");
}
return rb_enc_str_new(ptr, strlen(ptr), enc);
}
VALUE
rb_tainted_str_new(const char *ptr, long len)
{