{`package c3c; type T float32; var _ = T(0.)`, `T(0.)`, `c3c.T`, `0`},

		{`package c4a; var _ = complex64(0i)`, `0i`, `complex64`, `(0 + 0i)`},
		{`package c4b; var _ = complex64(0i)`, `complex64(0i)`, `complex64`, `(0 + 0i)`},
		{`package c4c; type T complex64; var _ = T(0i)`, `T(0i)`, `c4c.T`, `(0 + 0i)`},

		{`package c5a; var _ = string("foo")`, `"foo"`, `string`, `"foo"`},

		{`package c3c; type T float32; var _ = T(0.)`, `T(0.)`, `c3c.T`, `0`},

		{`package c4a; var _ = complex64(0i)`, `0i`, `complex64`, `(0 + 0i)`},
		{`package c4b; var _ = complex64(0i)`, `complex64(0i)`, `complex64`, `(0 + 0i)`},
		{`package c4c; type T complex64; var _ = T(0i)`, `T(0i)`, `c4c.T`, `(0 + 0i)`},

		{`package c5a; var _ = string("foo")`, `"foo"`, `string`, `"foo"`},

	{"%b", 1 + 2i, "(4503599627370496p-52+4503599627370496p-51i)"},
	{"%b", complex64(1 + 2i), "(8388608p-23+8388608p-22i)"},
	// The sharp flag has no effect for binary complex format.
	{"%#b", 1 + 2i, "(4503599627370496p-52+4503599627370496p-51i)"},
	// Precision has no effect for binary complex format.
	{"%.4b", 1 + 2i, "(4503599627370496p-52+4503599627370496p-51i)"},
	{"%.4b", complex64(1 + 2i), "(8388608p-23+8388608p-22i)"},
	// complex infinites and NaNs

	Uint8:         "uint8",
	Uint16:        "uint16",
	Uint32:        "uint32",
	Uint64:        "uint64",
	Uintptr:       "uintptr",
	Float32:       "float32",
	Float64:       "float64",
	Complex64:     "complex64",
	Complex128:    "complex128",
	Array:         "array",
	Chan:          "chan",
	Func:          "func",
	Interface:     "interface",
	Map:           "map",
	Pointer:       "ptr",

	c.uint16 = c.Ident("uint16")
	c.uint32 = c.Ident("uint32")
	c.uint64 = c.Ident("uint64")
	c.uintptr = c.Ident("uintptr")
	c.float32 = c.Ident("float32")
	c.float64 = c.Ident("float64")
	c.complex64 = c.Ident("complex64")
	c.complex128 = c.Ident("complex128")
	c.void = c.Ident("void")
	c.string = c.Ident("string")
	c.goVoid = c.Ident("_Ctype_void")

	// Normally cgo translates void* to unsafe.Pointer,

	"int64":      {Size: 8, Align: 8, C: c("GoInt64")},
	"uint64":     {Size: 8, Align: 8, C: c("GoUint64")},
	"float32":    {Size: 4, Align: 4, C: c("GoFloat32")},
	"float64":    {Size: 8, Align: 8, C: c("GoFloat64")},
	"complex64":  {Size: 8, Align: 4, C: c("GoComplex64")},
	"complex128": {Size: 16, Align: 8, C: c("GoComplex128")},
}

// Map an ast type to a Type.
func (p *Package) cgoType(e ast.Expr) *Type {
	switch t := e.(type) {

		die = d.newdie(&dwtypes, dwarf.DW_ABRV_BASETYPE, name)
		newattr(die, dwarf.DW_AT_encoding, dwarf.DW_CLS_CONSTANT, dwarf.DW_ATE_float, 0)
		newattr(die, dwarf.DW_AT_byte_size, dwarf.DW_CLS_CONSTANT, bytesize, 0)

	case abi.Complex64,
		abi.Complex128:
		die = d.newdie(&dwtypes, dwarf.DW_ABRV_BASETYPE, name)
		newattr(die, dwarf.DW_AT_encoding, dwarf.DW_CLS_CONSTANT, dwarf.DW_ATE_complex_float, 0)

}

func FloatForComplex(t *Type) *Type {
	switch t.Kind() {
	case TCOMPLEX64:
		return Types[TFLOAT32]
	case TCOMPLEX128:
		return Types[TFLOAT64]
	}
	base.Fatalf("unexpected type: %v", t)
	return nil
}

func ComplexForFloat(t *Type) *Type {
	switch t.Kind() {
	case TFLOAT32:
		return Types[TCOMPLEX64]
	case TFLOAT64:
		return Types[TCOMPLEX128]
	}