Feature #10017 » values_at_bang.patch
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return result;
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}
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/*
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* call-seq:
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* hsh.values_at!(key, ...) -> array
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* hsh.values_at!(key, ...) { |key| block } -> array
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*
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* Return an array containing the values associated with the given keys
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* but also raises an <code>KeyError</code> when one of keys can't be found.
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* Also see <code>Hash#values_at</code> and <code>Hash#fetch</code>.
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*
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* h = { "cat" => "feline", "dog" => "canine", "cow" => "bovine" }
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*
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* h.values_at!("cow", "cat") #=> ["bovine", "feline"]
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* h.values_at!("cow", "bird") # raises KeyError
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* h.values_at!("cow", "bird") { |k| k.upcase } #=> ["bovine", "BIRD"]
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*/
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VALUE
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rb_hash_values_at_bang(int argc, VALUE *argv, VALUE hash)
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{
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VALUE result = rb_ary_new2(argc);
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long i;
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for (i=0; i<argc; i++) {
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rb_ary_push(result, rb_hash_fetch(hash, argv[i]));
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}
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return result;
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}
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static int
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select_i(VALUE key, VALUE value, VALUE result)
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{
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| ... | ... | |
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rb_define_method(rb_cHash,"keys", rb_hash_keys, 0);
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rb_define_method(rb_cHash,"values", rb_hash_values, 0);
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rb_define_method(rb_cHash,"values_at", rb_hash_values_at, -1);
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rb_define_method(rb_cHash,"values_at!", rb_hash_values_at_bang, -1);
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rb_define_method(rb_cHash,"shift", rb_hash_shift, 0);
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rb_define_method(rb_cHash,"delete", rb_hash_delete, 1);
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