本文整理汇总了Golang中go/constant.Imag函数的典型用法代码示例。如果您正苦于以下问题：Golang Imag函数的具体用法？Golang Imag怎么用？Golang Imag使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了Imag函数的13个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。
示例1: setValue
func (v *Variable) setValue(y *Variable) error {
var err error
switch v.Kind {
case reflect.Float32, reflect.Float64:
f, _ := constant.Float64Val(y.Value)
err = v.writeFloatRaw(f, v.RealType.Size())
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
n, _ := constant.Int64Val(y.Value)
err = v.writeUint(uint64(n), v.RealType.Size())
case reflect.Uint, reflect.Uint8, reflect.Uint16, reflect.Uint32, reflect.Uint64:
n, _ := constant.Uint64Val(y.Value)
err = v.writeUint(n, v.RealType.Size())
case reflect.Bool:
err = v.writeBool(constant.BoolVal(y.Value))
case reflect.Complex64, reflect.Complex128:
real, _ := constant.Float64Val(constant.Real(y.Value))
imag, _ := constant.Float64Val(constant.Imag(y.Value))
err = v.writeComplex(real, imag, v.RealType.Size())
default:
fmt.Printf("default\n")
if t, isptr := v.RealType.(*dwarf.PtrType); isptr {
err = v.writeUint(uint64(y.Children[0].Addr), int64(t.ByteSize))
} else {
return fmt.Errorf("can not set variables of type %s (not implemented)", v.Kind.String())
}
}
return err
}
开发者ID:DuoSoftware，项目名称:v6engine-deps，代码行数:29，代码来源:variables.go
示例2: value
func (p *exporter) value(x constant.Value) {
if trace {
p.tracef("value { ")
defer p.tracef("} ")
}
switch kind := x.Kind(); kind {
case constant.Bool:
tag := falseTag
if constant.BoolVal(x) {
tag = trueTag
}
p.int(tag)
case constant.Int:
if i, ok := constant.Int64Val(x); ok {
p.int(int64Tag)
p.int64(i)
return
}
p.int(floatTag)
p.float(x)
case constant.Float:
p.int(fractionTag)
p.fraction(x)
case constant.Complex:
p.int(complexTag)
p.fraction(constant.Real(x))
p.fraction(constant.Imag(x))
case constant.String:
p.int(stringTag)
p.string(constant.StringVal(x))
default:
panic(fmt.Sprintf("unexpected value kind %d", kind))
}
}
开发者ID:julesGoullee，项目名称:gopherjs，代码行数:35，代码来源:export.go
示例3: valString
// valString returns the string representation for the value v.
// Setting floatFmt forces an integer value to be formatted in
// normalized floating-point format.
// TODO(gri) Move this code into package exact.
func valString(v exact.Value, floatFmt bool) string {
switch v.Kind() {
case exact.Int:
if floatFmt {
return floatString(v)
}
case exact.Float:
return floatString(v)
case exact.Complex:
re := exact.Real(v)
im := exact.Imag(v)
var s string
if exact.Sign(re) != 0 {
s = floatString(re)
if exact.Sign(im) >= 0 {
s += " + "
} else {
s += " - "
im = exact.UnaryOp(token.SUB, im, 0) // negate im
}
}
// im != 0, otherwise v would be exact.Int or exact.Float
return s + floatString(im) + "i"
}
return v.String()
}
开发者ID:ChloeTigre，项目名称:golang-tools，代码行数:30，代码来源:print.go
示例4: value
func (p *exporter) value(x constant.Value) {
if trace {
p.tracef("= ")
}
switch x.Kind() {
case constant.Bool:
tag := falseTag
if constant.BoolVal(x) {
tag = trueTag
}
p.tag(tag)
case constant.Int:
if v, exact := constant.Int64Val(x); exact {
// common case: x fits into an int64 - use compact encoding
p.tag(int64Tag)
p.int64(v)
return
}
// uncommon case: large x - use float encoding
// (powers of 2 will be encoded efficiently with exponent)
p.tag(floatTag)
p.float(constant.ToFloat(x))
case constant.Float:
p.tag(floatTag)
p.float(x)
case constant.Complex:
p.tag(complexTag)
p.float(constant.Real(x))
p.float(constant.Imag(x))
case constant.String:
p.tag(stringTag)
p.string(constant.StringVal(x))
case constant.Unknown:
// package contains type errors
p.tag(unknownTag)
default:
log.Fatalf("gcimporter: unexpected value %v (%T)", x, x)
}
}
开发者ID:ChloeTigre，项目名称:golang-tools，代码行数:46，代码来源:bexport.go
示例5: imagBuiltin
func imagBuiltin(args []*Variable, nodeargs []ast.Expr) (*Variable, error) {
if len(args) != 1 {
return nil, fmt.Errorf("wrong number of arguments to imag: %d", len(args))
}
arg := args[0]
arg.loadValue()
if arg.Unreadable != nil {
return nil, arg.Unreadable
}
if arg.Kind != reflect.Complex64 && arg.Kind != reflect.Complex128 {
return nil, fmt.Errorf("invalid argument %s (type %s) to imag", exprToString(nodeargs[0]), arg.TypeString())
}
return newConstant(constant.Imag(arg.Value), arg.mem), nil
}
开发者ID:mattn，项目名称:delve，代码行数:18，代码来源:eval.go
示例6: ConvertVar
// ConvertVar converts from proc.Variable to api.Variable.
func ConvertVar(v *proc.Variable) *Variable {
r := Variable{
Addr: v.Addr,
OnlyAddr: v.OnlyAddr,
Name: v.Name,
Kind: v.Kind,
Len: v.Len,
Cap: v.Cap,
}
r.Type = prettyTypeName(v.DwarfType)
r.RealType = prettyTypeName(v.RealType)
if v.Unreadable != nil {
r.Unreadable = v.Unreadable.Error()
}
if v.Value != nil {
switch v.Kind {
case reflect.Float32:
f, _ := constant.Float64Val(v.Value)
r.Value = strconv.FormatFloat(f, 'f', -1, 32)
case reflect.Float64:
f, _ := constant.Float64Val(v.Value)
r.Value = strconv.FormatFloat(f, 'f', -1, 64)
case reflect.String, reflect.Func:
r.Value = constant.StringVal(v.Value)
default:
r.Value = v.Value.String()
}
}
switch v.Kind {
case reflect.Complex64:
r.Children = make([]Variable, 2)
r.Len = 2
real, _ := constant.Float64Val(constant.Real(v.Value))
imag, _ := constant.Float64Val(constant.Imag(v.Value))
r.Children[0].Name = "real"
r.Children[0].Kind = reflect.Float32
r.Children[0].Value = strconv.FormatFloat(real, 'f', -1, 32)
r.Children[1].Name = "imaginary"
r.Children[1].Kind = reflect.Float32
r.Children[1].Value = strconv.FormatFloat(imag, 'f', -1, 32)
case reflect.Complex128:
r.Children = make([]Variable, 2)
r.Len = 2
real, _ := constant.Float64Val(constant.Real(v.Value))
imag, _ := constant.Float64Val(constant.Imag(v.Value))
r.Children[0].Name = "real"
r.Children[0].Kind = reflect.Float64
r.Children[0].Value = strconv.FormatFloat(real, 'f', -1, 64)
r.Children[1].Name = "imaginary"
r.Children[1].Kind = reflect.Float64
r.Children[1].Value = strconv.FormatFloat(imag, 'f', -1, 64)
default:
r.Children = make([]Variable, len(v.Children))
for i := range v.Children {
r.Children[i] = *ConvertVar(&v.Children[i])
}
}
return &r
}
开发者ID:RJAugust，项目名称:delve，代码行数:73，代码来源:conversions.go
示例7: builtin
//.........这里部分代码省略.........
arg(&y, 1)
if y.mode == invalid {
return
}
// convert or check untyped arguments
d := 0
if isUntyped(x.typ) {
d |= 1
}
if isUntyped(y.typ) {
d |= 2
}
switch d {
case 0:
// x and y are typed => nothing to do
case 1:
// only x is untyped => convert to type of y
check.convertUntyped(x, y.typ)
case 2:
// only y is untyped => convert to type of x
check.convertUntyped(&y, x.typ)
case 3:
// x and y are untyped =>
// 1) if both are constants, convert them to untyped
// floating-point numbers if possible,
// 2) if one of them is not constant (possible because
// it contains a shift that is yet untyped), convert
// both of them to float64 since they must have the
// same type to succeed (this will result in an error
// because shifts of floats are not permitted)
if x.mode == constant_ && y.mode == constant_ {
toFloat := func(x *operand) {
if isNumeric(x.typ) && constant.Sign(constant.Imag(x.val)) == 0 {
x.typ = Typ[UntypedFloat]
}
}
toFloat(x)
toFloat(&y)
} else {
check.convertUntyped(x, Typ[Float64])
check.convertUntyped(&y, Typ[Float64])
// x and y should be invalid now, but be conservative
// and check below
}
}
if x.mode == invalid || y.mode == invalid {
return
}
// both argument types must be identical
if !Identical(x.typ, y.typ) {
check.invalidArg(x.pos(), "mismatched types %s and %s", x.typ, y.typ)
return
}
// the argument types must be of floating-point type
if !isFloat(x.typ) {
check.invalidArg(x.pos(), "arguments have type %s, expected floating-point", x.typ)
return
}
// if both arguments are constants, the result is a constant
if x.mode == constant_ && y.mode == constant_ {
x.val = constant.BinaryOp(constant.ToFloat(x.val), token.ADD, constant.MakeImag(constant.ToFloat(y.val)))
} else {
开发者ID:Greentor，项目名称:go，代码行数:67，代码来源:builtins.go
示例8: TestVariableEvaluation
func TestVariableEvaluation(t *testing.T) {
testcases := []struct {
name string
st reflect.Kind
value interface{}
length, cap int64
childrenlen int
}{
{"a1", reflect.String, "foofoofoofoofoofoo", 18, 0, 0},
{"a11", reflect.Array, nil, 3, -1, 3},
{"a12", reflect.Slice, nil, 2, 2, 2},
{"a13", reflect.Slice, nil, 3, 3, 3},
{"a2", reflect.Int, int64(6), 0, 0, 0},
{"a3", reflect.Float64, float64(7.23), 0, 0, 0},
{"a4", reflect.Array, nil, 2, -1, 2},
{"a5", reflect.Slice, nil, 5, 5, 5},
{"a6", reflect.Struct, nil, 2, 0, 2},
{"a7", reflect.Ptr, nil, 1, 0, 1},
{"a8", reflect.Struct, nil, 2, 0, 2},
{"a9", reflect.Ptr, nil, 1, 0, 1},
{"baz", reflect.String, "bazburzum", 9, 0, 0},
{"neg", reflect.Int, int64(-1), 0, 0, 0},
{"f32", reflect.Float32, float64(float32(1.2)), 0, 0, 0},
{"c64", reflect.Complex64, complex128(complex64(1 + 2i)), 0, 0, 0},
{"c128", reflect.Complex128, complex128(2 + 3i), 0, 0, 0},
{"a6.Baz", reflect.Int, int64(8), 0, 0, 0},
{"a7.Baz", reflect.Int, int64(5), 0, 0, 0},
{"a8.Baz", reflect.String, "feh", 3, 0, 0},
{"a8", reflect.Struct, nil, 2, 0, 2},
{"i32", reflect.Array, nil, 2, -1, 2},
{"b1", reflect.Bool, true, 0, 0, 0},
{"b2", reflect.Bool, false, 0, 0, 0},
{"f", reflect.Func, "main.barfoo", 0, 0, 0},
{"ba", reflect.Slice, nil, 200, 200, 64},
}
withTestProcess("testvariables", t, func(p *Process, fixture protest.Fixture) {
assertNoError(p.Continue(), t, "Continue() returned an error")
for _, tc := range testcases {
v, err := evalVariable(p, tc.name)
assertNoError(err, t, fmt.Sprintf("EvalVariable(%s)", tc.name))
if v.Kind != tc.st {
t.Fatalf("%s simple type: expected: %s got: %s", tc.name, tc.st, v.Kind.String())
}
if v.Value == nil && tc.value != nil {
t.Fatalf("%s value: expected: %v got: %v", tc.name, tc.value, v.Value)
} else {
switch v.Kind {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
x, _ := constant.Int64Val(v.Value)
if y, ok := tc.value.(int64); !ok || x != y {
t.Fatalf("%s value: expected: %v got: %v", tc.name, tc.value, v.Value)
}
case reflect.Float32, reflect.Float64:
x, _ := constant.Float64Val(v.Value)
if y, ok := tc.value.(float64); !ok || x != y {
t.Fatalf("%s value: expected: %v got: %v", tc.name, tc.value, v.Value)
}
case reflect.Complex64, reflect.Complex128:
xr, _ := constant.Float64Val(constant.Real(v.Value))
xi, _ := constant.Float64Val(constant.Imag(v.Value))
if y, ok := tc.value.(complex128); !ok || complex(xr, xi) != y {
t.Fatalf("%s value: expected: %v got: %v", tc.name, tc.value, v.Value)
}
case reflect.String:
if y, ok := tc.value.(string); !ok || constant.StringVal(v.Value) != y {
t.Fatalf("%s value: expected: %v got: %v", tc.name, tc.value, v.Value)
}
}
}
if v.Len != tc.length {
t.Fatalf("%s len: expected: %d got: %d", tc.name, tc.length, v.Len)
}
if v.Cap != tc.cap {
t.Fatalf("%s cap: expected: %d got: %d", tc.name, tc.cap, v.Cap)
}
if len(v.Children) != tc.childrenlen {
t.Fatalf("%s children len: expected %d got: %d", tc.name, tc.childrenlen, len(v.Children))
}
}
})
}
开发者ID:vornet，项目名称:delve，代码行数:84，代码来源:proc_test.go
示例9: translateExpr
func (c *funcContext) translateExpr(expr ast.Expr) *expression {
exprType := c.p.TypeOf(expr)
if value := c.p.Types[expr].Value; value != nil {
basic := exprType.Underlying().(*types.Basic)
switch {
case isBoolean(basic):
return c.formatExpr("%s", strconv.FormatBool(constant.BoolVal(value)))
case isInteger(basic):
if is64Bit(basic) {
if basic.Kind() == types.Int64 {
d, ok := constant.Int64Val(constant.ToInt(value))
if !ok {
panic("could not get exact uint")
}
return c.formatExpr("new %s(%s, %s)", c.typeName(exprType), strconv.FormatInt(d>>32, 10), strconv.FormatUint(uint64(d)&(1<<32-1), 10))
}
d, ok := constant.Uint64Val(constant.ToInt(value))
if !ok {
panic("could not get exact uint")
}
return c.formatExpr("new %s(%s, %s)", c.typeName(exprType), strconv.FormatUint(d>>32, 10), strconv.FormatUint(d&(1<<32-1), 10))
}
d, ok := constant.Int64Val(constant.ToInt(value))
if !ok {
panic("could not get exact int")
}
return c.formatExpr("%s", strconv.FormatInt(d, 10))
case isFloat(basic):
f, _ := constant.Float64Val(value)
return c.formatExpr("%s", strconv.FormatFloat(f, 'g', -1, 64))
case isComplex(basic):
r, _ := constant.Float64Val(constant.Real(value))
i, _ := constant.Float64Val(constant.Imag(value))
if basic.Kind() == types.UntypedComplex {
exprType = types.Typ[types.Complex128]
}
return c.formatExpr("new %s(%s, %s)", c.typeName(exprType), strconv.FormatFloat(r, 'g', -1, 64), strconv.FormatFloat(i, 'g', -1, 64))
case isString(basic):
return c.formatExpr("%s", encodeString(constant.StringVal(value)))
default:
panic("Unhandled constant type: " + basic.String())
}
}
var obj types.Object
switch e := expr.(type) {
case *ast.SelectorExpr:
obj = c.p.Uses[e.Sel]
case *ast.Ident:
obj = c.p.Defs[e]
if obj == nil {
obj = c.p.Uses[e]
}
}
if obj != nil && typesutil.IsJsPackage(obj.Pkg()) {
switch obj.Name() {
case "Global":
return c.formatExpr("$global")
case "Module":
return c.formatExpr("$module")
case "Undefined":
return c.formatExpr("undefined")
}
}
switch e := expr.(type) {
case *ast.CompositeLit:
if ptrType, isPointer := exprType.(*types.Pointer); isPointer {
exprType = ptrType.Elem()
}
collectIndexedElements := func(elementType types.Type) []string {
var elements []string
i := 0
zero := c.translateExpr(c.zeroValue(elementType)).String()
for _, element := range e.Elts {
if kve, isKve := element.(*ast.KeyValueExpr); isKve {
key, ok := constant.Int64Val(constant.ToInt(c.p.Types[kve.Key].Value))
if !ok {
panic("could not get exact int")
}
i = int(key)
element = kve.Value
}
for len(elements) <= i {
elements = append(elements, zero)
}
elements[i] = c.translateImplicitConversionWithCloning(element, elementType).String()
i++
}
return elements
}
switch t := exprType.Underlying().(type) {
case *types.Array:
elements := collectIndexedElements(t.Elem())
if len(elements) == 0 {
return c.formatExpr("%s.zero()", c.typeName(t))
}
//.........这里部分代码省略.........
开发者ID:camlistore，项目名称:camlistore，代码行数:101，代码来源:expressions.go
示例10: formatExprInternal
//.........这里部分代码省略.........
if val := c.p.Types[e.(ast.Expr)].Value; val != nil {
continue
}
if !hasAssignments {
hasAssignments = true
out.WriteByte('(')
parens = false
}
v := c.newVariable("x")
out.WriteString(v + " = " + c.translateExpr(e.(ast.Expr)).String() + ", ")
vars[i] = v
}
processFormat(func(b, k uint8, n int) {
writeExpr := func(suffix string) {
if vars[n] != "" {
out.WriteString(vars[n] + suffix)
return
}
out.WriteString(c.translateExpr(a[n].(ast.Expr)).StringWithParens() + suffix)
}
switch k {
case 0:
out.WriteByte(b)
case 's':
if e, ok := a[n].(*expression); ok {
out.WriteString(e.StringWithParens())
return
}
out.WriteString(a[n].(string))
case 'd':
out.WriteString(strconv.Itoa(a[n].(int)))
case 't':
out.WriteString(a[n].(token.Token).String())
case 'e':
e := a[n].(ast.Expr)
if val := c.p.Types[e].Value; val != nil {
out.WriteString(c.translateExpr(e).String())
return
}
writeExpr("")
case 'f':
e := a[n].(ast.Expr)
if val := c.p.Types[e].Value; val != nil {
d, _ := constant.Int64Val(constant.ToInt(val))
out.WriteString(strconv.FormatInt(d, 10))
return
}
if is64Bit(c.p.TypeOf(e).Underlying().(*types.Basic)) {
out.WriteString("$flatten64(")
writeExpr("")
out.WriteString(")")
return
}
writeExpr("")
case 'h':
e := a[n].(ast.Expr)
if val := c.p.Types[e].Value; val != nil {
d, _ := constant.Uint64Val(constant.ToInt(val))
if c.p.TypeOf(e).Underlying().(*types.Basic).Kind() == types.Int64 {
out.WriteString(strconv.FormatInt(int64(d)>>32, 10))
return
}
out.WriteString(strconv.FormatUint(d>>32, 10))
return
}
writeExpr(".$high")
case 'l':
if val := c.p.Types[a[n].(ast.Expr)].Value; val != nil {
d, _ := constant.Uint64Val(constant.ToInt(val))
out.WriteString(strconv.FormatUint(d&(1<<32-1), 10))
return
}
writeExpr(".$low")
case 'r':
if val := c.p.Types[a[n].(ast.Expr)].Value; val != nil {
r, _ := constant.Float64Val(constant.Real(val))
out.WriteString(strconv.FormatFloat(r, 'g', -1, 64))
return
}
writeExpr(".$real")
case 'i':
if val := c.p.Types[a[n].(ast.Expr)].Value; val != nil {
i, _ := constant.Float64Val(constant.Imag(val))
out.WriteString(strconv.FormatFloat(i, 'g', -1, 64))
return
}
writeExpr(".$imag")
case '%':
out.WriteRune('%')
default:
panic(fmt.Sprintf("formatExpr: %%%c%d", k, n))
}
})
if hasAssignments {
out.WriteByte(')')
}
return &expression{str: out.String(), parens: parens}
}
开发者ID:camlistore，项目名称:camlistore，代码行数:101，代码来源:expressions.go
示例11: representableConst
//.........这里部分代码省略.........
return 0 <= x && x <= int64(1)<<s-1
}
return 0 <= x
case Uint8:
const s = 8
return 0 <= x && x <= 1<<s-1
case Uint16:
const s = 16
return 0 <= x && x <= 1<<s-1
case Uint32:
const s = 32
return 0 <= x && x <= 1<<s-1
case Uint64:
return 0 <= x
default:
unreachable()
}
}
// x does not fit into int64
switch n := constant.BitLen(x); typ.kind {
case Uint, Uintptr:
var s = uint(conf.sizeof(typ)) * 8
return constant.Sign(x) >= 0 && n <= int(s)
case Uint64:
return constant.Sign(x) >= 0 && n <= 64
case UntypedInt:
return true
}
case isFloat(typ):
x := constant.ToFloat(x)
if x.Kind() != constant.Float {
return false
}
switch typ.kind {
case Float32:
if rounded == nil {
return fitsFloat32(x)
}
r := roundFloat32(x)
if r != nil {
*rounded = r
return true
}
case Float64:
if rounded == nil {
return fitsFloat64(x)
}
r := roundFloat64(x)
if r != nil {
*rounded = r
return true
}
case UntypedFloat:
return true
default:
unreachable()
}
case isComplex(typ):
x := constant.ToComplex(x)
if x.Kind() != constant.Complex {
return false
}
switch typ.kind {
case Complex64:
if rounded == nil {
return fitsFloat32(constant.Real(x)) && fitsFloat32(constant.Imag(x))
}
re := roundFloat32(constant.Real(x))
im := roundFloat32(constant.Imag(x))
if re != nil && im != nil {
*rounded = constant.BinaryOp(re, token.ADD, constant.MakeImag(im))
return true
}
case Complex128:
if rounded == nil {
return fitsFloat64(constant.Real(x)) && fitsFloat64(constant.Imag(x))
}
re := roundFloat64(constant.Real(x))
im := roundFloat64(constant.Imag(x))
if re != nil && im != nil {
*rounded = constant.BinaryOp(re, token.ADD, constant.MakeImag(im))
return true
}
case UntypedComplex:
return true
default:
unreachable()
}
case isString(typ):
return x.Kind() == constant.String
case isBoolean(typ):
return x.Kind() == constant.Bool
}
return false
}
开发者ID:2thetop，项目名称:go，代码行数:101，代码来源:expr.go
示例12: representableConst
//.........这里部分代码省略.........
return 0 <= x && x <= 1<<s-1
case Uint32:
const s = 32
return 0 <= x && x <= 1<<s-1
case Uint64:
return 0 <= x
case Float32, Float64, Complex64, Complex128,
UntypedInt, UntypedFloat, UntypedComplex:
return true
}
}
n := constant.BitLen(x)
switch as {
case Uint, Uintptr:
var s = uint(conf.sizeof(Typ[as])) * 8
return constant.Sign(x) >= 0 && n <= int(s)
case Uint64:
return constant.Sign(x) >= 0 && n <= 64
case Float32, Complex64:
if rounded == nil {
return fitsFloat32(x)
}
r := roundFloat32(x)
if r != nil {
*rounded = r
return true
}
case Float64, Complex128:
if rounded == nil {
return fitsFloat64(x)
}
r := roundFloat64(x)
if r != nil {
*rounded = r
return true
}
case UntypedInt, UntypedFloat, UntypedComplex:
return true
}
case constant.Float:
switch as {
case Float32, Complex64:
if rounded == nil {
return fitsFloat32(x)
}
r := roundFloat32(x)
if r != nil {
*rounded = r
return true
}
case Float64, Complex128:
if rounded == nil {
return fitsFloat64(x)
}
r := roundFloat64(x)
if r != nil {
*rounded = r
return true
}
case UntypedFloat, UntypedComplex:
return true
}
case constant.Complex:
switch as {
case Complex64:
if rounded == nil {
return fitsFloat32(constant.Real(x)) && fitsFloat32(constant.Imag(x))
}
re := roundFloat32(constant.Real(x))
im := roundFloat32(constant.Imag(x))
if re != nil && im != nil {
*rounded = constant.BinaryOp(re, token.ADD, constant.MakeImag(im))
return true
}
case Complex128:
if rounded == nil {
return fitsFloat64(constant.Real(x)) && fitsFloat64(constant.Imag(x))
}
re := roundFloat64(constant.Real(x))
im := roundFloat64(constant.Imag(x))
if re != nil && im != nil {
*rounded = constant.BinaryOp(re, token.ADD, constant.MakeImag(im))
return true
}
case UntypedComplex:
return true
}
case constant.String:
return as == String || as == UntypedString
default:
unreachable()
}
return false
}
开发者ID:gmwu，项目名称:go，代码行数:101，代码来源:expr.go
示例13: Complex128
// Complex128 returns the complex value of this constant truncated to
// fit a complex128.
//
func (c *Const) Complex128() complex128 {
re, _ := exact.Float64Val(exact.Real(c.Value))
im, _ := exact.Float64Val(exact.Imag(c.Value))
return complex(re, im)
}
开发者ID:ChloeTigre，项目名称:golang-tools，代码行数:8，代码来源:const15.go
注：本文中的go/constant.Imag函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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