54 lines
1.3 KiB
Go
54 lines
1.3 KiB
Go
// Copyright (c) quickfixengine.org All rights reserved.
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//
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// This file may be distributed under the terms of the quickfixengine.org
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// license as defined by quickfixengine.org and appearing in the file
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// LICENSE included in the packaging of this file.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING
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// THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// See http://www.quickfixengine.org/LICENSE for licensing information.
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//
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// Contact ask@quickfixengine.org if any conditions of this licensing
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// are not clear to you.
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package quickfix
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import (
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"fmt"
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"strconv"
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)
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// FIXFloat is a FIX Float Value, implements FieldValue.
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type FIXFloat float64
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// Float64 converts the FIXFloat value to float64.
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func (f FIXFloat) Float64() float64 { return float64(f) }
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func (f *FIXFloat) Read(bytes []byte) error {
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val, err := strconv.ParseFloat(string(bytes), 64)
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if err != nil {
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return err
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}
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// `strconv` allows values like "+100.00", which is not allowed for FIX float types.
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for _, b := range bytes {
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if b != '.' && b != '-' && !isDecimal(b) {
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return fmt.Errorf("invalid value %v", string(bytes))
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}
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}
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*f = FIXFloat(val)
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return err
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}
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func (f FIXFloat) Write() []byte {
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return []byte(strconv.FormatFloat(float64(f), 'f', -1, 64))
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}
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func isDecimal(b byte) bool {
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return '0' <= b && b <= '9'
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}
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