Method: FFI::MemoryPointer#initialize

Defined in:
ext/ffi_c/MemoryPointer.c

#initialize(size, count = 1, clear = true) ⇒ self

A new instance of FFI::MemoryPointer.

Parameters:

  • size (Fixnum, Bignum, Symbol, FFI::Type) —

    size of a memory cell (in bytes, or type whom size will be used)

  • count (Numeric) —

    number of cells in memory

  • clear (Boolean) —

    set memory to all-zero if true



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# File 'ext/ffi_c/MemoryPointer.c', line 80

static VALUE
memptr_initialize(int argc, VALUE* argv, VALUE self)
{
    VALUE size = Qnil, count = Qnil, clear = Qnil;
    int nargs = rb_scan_args(argc, argv, "12", &size, &count, &clear);

    memptr_malloc(self, rbffi_type_size(size), nargs > 1 ? NUM2LONG(count) : 1,
        RTEST(clear) || clear == Qnil);

    if (rb_block_given_p()) {
        return rb_ensure(rb_yield, self, memptr_free, self);
    }

    return self;
}