64 lines
948 B
Go
64 lines
948 B
Go
package langext
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import (
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"reflect"
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)
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// PTrue := &true
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var PTrue = Ptr(true)
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// PFalse := &false
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var PFalse = Ptr(false)
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// PNil := &nil
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var PNil = Ptr[any](nil)
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func Ptr[T any](v T) *T {
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return &v
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}
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func DblPtr[T any](v T) **T {
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v_ := &v
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return &v_
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}
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func DblPtrNil[T any]() **T {
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var v *T = nil
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return &v
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}
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func ArrPtr[T any](v ...T) *[]T {
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return &v
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}
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func PtrInt32(v int32) *int32 {
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return &v
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}
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func PtrInt64(v int64) *int64 {
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return &v
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}
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func PtrFloat32(v float32) *float32 {
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return &v
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}
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func PtrFloat64(v float64) *float64 {
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return &v
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}
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func IsNil(i interface{}) bool {
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if i == nil {
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return true
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}
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switch reflect.TypeOf(i).Kind() {
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case reflect.Ptr, reflect.Map, reflect.Chan, reflect.Slice, reflect.Func, reflect.UnsafePointer:
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return reflect.ValueOf(i).IsNil()
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}
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return false
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}
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func PtrEquals[T comparable](v1 *T, v2 *T) bool {
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return (v1 == nil && v2 == nil) || (v1 != nil && v2 != nil && *v1 == *v2)
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}
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