# The Go Programming Language

Go is an open source programming language that makes it easy to build simple,
reliable, and efficient software.

![Gopher image](https://golang.org/doc/gopher/fiveyears.jpg)
*Gopher image by [Renee French][rf], licensed under [Creative Commons 4.0 Attributions license][cc4-by].*

Our canonical Git repository is located at https://go.googlesource.com/go.
There is a mirror of the repository at https://github.com/golang/go.

pkg image, method (*Gray) SetRGBA64(int, int, color.RGBA64)
pkg image, method (*Gray16) RGBA64At(int, int) color.RGBA64
pkg image, method (*Gray16) SetRGBA64(int, int, color.RGBA64)
pkg image, method (*NRGBA) RGBA64At(int, int) color.RGBA64
pkg image, method (*NRGBA) SetRGBA64(int, int, color.RGBA64)
pkg image, method (*NRGBA64) RGBA64At(int, int) color.RGBA64
pkg image, method (*NRGBA64) SetRGBA64(int, int, color.RGBA64)

pkg debug/pe, const IMAGE_SCN_LNK_COMDAT = 4096 #51868
pkg debug/pe, const IMAGE_SCN_LNK_COMDAT ideal-int #51868
pkg debug/pe, const IMAGE_SCN_MEM_DISCARDABLE = 33554432 #51868
pkg debug/pe, const IMAGE_SCN_MEM_DISCARDABLE ideal-int #51868
pkg debug/pe, const IMAGE_SCN_MEM_EXECUTE = 536870912 #51868
pkg debug/pe, const IMAGE_SCN_MEM_EXECUTE ideal-int #51868

</p>

<pre>
const (
	c1 = imag(2i)                    // imag(2i) = 2.0 is a constant
	c2 = len([10]float64{2})         // [10]float64{2} contains no function calls
	c3 = len([10]float64{c1})        // [10]float64{c1} contains no function calls
	c4 = len([10]float64{imag(2i)})  // imag(2i) is a constant and no function call is issued
	c5 = len([10]float64{imag(z)})   // invalid: imag(z) is a (non-constant) function call
)

pkg go/importer, func For //deprecated
pkg go/importer, func ForCompiler //deprecated
pkg go/types, func NewInterface //deprecated
pkg go/types, method (*Interface) Embedded //deprecated
pkg image, var ZP //deprecated
pkg image, var ZR //deprecated
pkg image/jpeg, type Reader //deprecated
pkg net, type Dialer struct, Cancel //deprecated
pkg net, type Dialer struct, DualStack //deprecated
pkg net/http, method (*Transport) CancelRequest //deprecated

pkg debug/elf, const R_PPC64_UADDR64 R_PPC64 #54345
pkg debug/pe, const IMAGE_FILE_MACHINE_RISCV128 = 20776 #54251
pkg debug/pe, const IMAGE_FILE_MACHINE_RISCV128 ideal-int #54251
pkg debug/pe, const IMAGE_FILE_MACHINE_RISCV32 = 20530 #54251
pkg debug/pe, const IMAGE_FILE_MACHINE_RISCV32 ideal-int #54251
pkg debug/pe, const IMAGE_FILE_MACHINE_RISCV64 = 20580 #54251
pkg debug/pe, const IMAGE_FILE_MACHINE_RISCV64 ideal-int #54251

// The return value will be floating point type corresponding to the type of c.
func real(c ComplexType) FloatType

// The imag built-in function returns the imaginary part of the complex
// number c. The return value will be floating point type corresponding to
// the type of c.
func imag(c ComplexType) FloatType

// The clear built-in function clears maps and slices.

</p>

<pre>
const (
	c1 = imag(2i)                    // imag(2i) = 2.0 is a constant
	c2 = len([10]float64{2})         // [10]float64{2} contains no function calls
	c3 = len([10]float64{c1})        // [10]float64{c1} contains no function calls
	c4 = len([10]float64{imag(2i)})  // imag(2i) is a constant and no function call is issued
	c5 = len([10]float64{imag(z)})   // invalid: imag(z) is a (non-constant) function call
)