Examples of net.sf.saxon.value.NumericValue.signum()

net.sf.saxon.value.NumericValue.signum()
Determine whether the value is negative, zero, or positive @return -1 if negative, 0 if zero (including negative zero), +1 if positive, NaN if NaN

            lend = ((Int64Value)end).longValue();
        } else {
            // We need to be careful to handle cases such as plus/minus infinity and NaN
            if (end.isNaN()) {
                return "";
            } else if (end.signum() <= 0) {
                return "";
            } else if (end.compareTo(slength) > 0) {
                // this works even where the string contains surrogate pairs,
                // because the Java length is always >= the XPath length
                lend = slength+1;

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        } else {
            NumericValue rstart = start.round();
            // We need to be careful to handle cases such as plus/minus infinity
            if (rstart.isNaN()) {
                return "";
            } else if (rstart.signum() <= 0) {
                return s;
            } else if (rstart.compareTo(slength) > 0) {
                // this works even where the string contains surrogate pairs,
                // because the Java length is always >= the XPath length
                return "";

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            lend = ((Int64Value)end).longValue();
        } else {
            // We need to be careful to handle cases such as plus/minus infinity and NaN
            if (end.isNaN()) {
                return "";
            } else if (end.signum() <= 0) {
                return "";
            } else if (end.compareTo(slength) > 0) {
                // this works even where the string contains surrogate pairs,
                // because the Java length is always >= the XPath length
                lend = slength+1;

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