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integer
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is_numeric(text s)
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{
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return !trap_q(alpha, s, 0);
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}
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integer
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main(void)
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{
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if (!is_numeric("8192&*")) {
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o_text("Not numeric.\n");
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}
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if (is_numeric("8192")) {
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o_text("Numeric.\n");
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}
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return 0;
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}
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