cubiche /
system
| @@ 91-100 (lines=10) @@ | ||
| 88 | /** |
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| 89 | * {@inheritdoc} |
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| 90 | */ |
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| 91 | public function add(Number $x) |
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| 92 | { |
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| 93 | if (!$x->isInfinite() || |
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| 94 | ($this->isPositive() && $x->isPositive()) || |
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| 95 | ($this->isNegative() && $x->isNegative())) { |
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| 96 | return $this; |
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| 97 | } |
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| 98 | ||
| 99 | throw new \DomainException('The add operation is not defined between "INF" and "-INF"'); |
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| 100 | } |
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| 101 | ||
| 102 | /** |
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| 103 | * {@inheritdoc} |
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| @@ 129-138 (lines=10) @@ | ||
| 126 | /** |
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| 127 | * {@inheritdoc} |
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| 128 | */ |
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| 129 | public function sub(Number $x) |
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| 130 | { |
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| 131 | if (!$x->isInfinite() || |
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| 132 | ($this->isPositive() && $x->isNegative()) || |
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| 133 | ($this->isNegative() && $x->isPositive())) { |
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| 134 | return $this; |
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| 135 | } |
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| 136 | ||
| 137 | throw new \DomainException('The sub operation is not defined between "INF" and "INF"'); |
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| 138 | } |
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| 139 | ||
| 140 | /** |
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| 141 | * {@inheritdoc} |
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