21 lines
452 B
Go
21 lines
452 B
Go
package main
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import (
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"fmt"
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"strconv"
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)
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// field helps for field parsing
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type field struct{ err error }
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// uatoi parses an unsigned integer string and saves the error.
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// it assumes that the val is unsigned.
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// for ease of usability: it returns an int instead of uint.
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func (f *field) uatoi(name, val string) int {
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n, err := strconv.Atoi(val)
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if n < 0 || err != nil {
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f.err = fmt.Errorf("incorrect field -> %q = %q", name, val)
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}
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return n
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}
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