method

map!

v1_8_7_72 - Show latest stable - 0 notes - Class: Array

map!() public

Invokes the block once for each element of self, replacing the element with the value returned by block. See also Enumerable#collect.

   a = [ "a", "b", "c", "d" ]
   a.collect! {|x| x + "!" }
   a             #=>  [ "a!", "b!", "c!", "d!" ]

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/* 
 *  call-seq:
 *     array.collect! {|item| block }   ->   array
 *     array.map!     {|item| block }   ->   array
 *
 *  Invokes the block once for each element of _self_, replacing the
 *  element with the value returned by _block_.
 *  See also <code>Enumerable#collect</code>.
 *   
 *     a = [ "a", "b", "c", "d" ]
 *     a.collect! {|x| x + "!" }
 *     a             #=>  [ "a!", "b!", "c!", "d!" ]
 */

static VALUE
rb_ary_collect_bang(ary)
    VALUE ary;
{
    long i;

    RETURN_ENUMERATOR(ary, 0, 0);
    rb_ary_modify(ary);
    for (i = 0; i < RARRAY(ary)->len; i++) {
        rb_ary_store(ary, i, rb_yield(RARRAY(ary)->ptr[i]));
    }
    return ary;
}

map!

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