| strnatok | string to natural number function |
| Syntax | strnatok ( s : string [ , base : int ] ) : boolean
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| Description | The strnatok function is used determine whether the strnat function can be used to convert the string to a natural number without causing an error. If the string can be successfully converted, then strnatok returns true, otherwise it returns false. String s should consist of a possibly null sequence of blanks, then an optional plus sign, and finally a sequence of one or more digits. For number bases larger than 10, the digits can include a, b, c … (alternately A, B, C …) which represent the digit values 10, 11, 12 … If s is correctly constructed, then strnatok will return true, otherwise it returns false. The base, if given, must be in the range 2 to 36 (36 because there are 10 base ten digits and 26 letters). For example, strnatok ("FF", 16) = true.
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| See also | strnat function that does the actual conversion.
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