78 lines
1.4 KiB
Go
78 lines
1.4 KiB
Go
// Copyright (c) 2024-2026 Celestino Amoroso (celestino.amoroso@gmail.com).
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// All rights reserved.
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// number.go
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package kern
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import (
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"fmt"
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)
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func IsInteger(v any) (ok bool) {
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_, ok = v.(int64)
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return ok
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}
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func IsNumber(v any) (ok bool) {
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return IsFloat(v) || IsInteger(v)
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}
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func IsNumOrFract(v any) (ok bool) {
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return IsFloat(v) || IsInteger(v) || IsFraction(v)
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}
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func IsNumberString(v any) (ok bool) {
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return IsString(v) || IsNumber(v)
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}
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func NumAsFloat(v any) (f float64) {
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var ok bool
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if f, ok = v.(float64); !ok {
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if fract, ok := v.(*FractionType); ok {
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f = fract.ToFloat()
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} else {
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i, _ := v.(int64)
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f = float64(i)
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}
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}
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return
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}
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func AnyInteger(v any) (i int64, ok bool) {
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ok = true
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switch intval := v.(type) {
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case int:
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i = int64(intval)
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case uint8:
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i = int64(intval)
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case uint16:
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i = int64(intval)
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case uint64:
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i = int64(intval)
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case uint32:
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i = int64(intval)
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case int8:
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i = int64(intval)
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case int16:
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i = int64(intval)
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case int32:
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i = int64(intval)
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case int64:
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i = intval
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default:
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ok = false
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}
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return
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}
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func ToGoInt(value any, description string) (i int, err error) {
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if valueInt64, ok := value.(int64); ok {
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i = int(valueInt64)
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} else if valueInt, ok := value.(int); ok {
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i = valueInt
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} else {
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err = fmt.Errorf("%s expected integer, got %s (%v)", description, TypeName(value), value)
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}
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return
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}
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