zicht /
itertools
| @@ 16-27 (lines=12) @@ | ||
| 13 | * |
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| 14 | * @return \Closure |
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| 15 | */ |
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| 16 | function add() |
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| 17 | { |
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| 18 | return function ($a, $b) { |
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| 19 | if (!is_numeric($a)) { |
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| 20 | throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform addition, not %s', is_object($a) ? get_class($a) : gettype($a))); |
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| 21 | } |
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| 22 | if (!is_numeric($b)) { |
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| 23 | throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform addition, not %s', is_object($b) ? get_class($b) : gettype($b))); |
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| 24 | } |
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| 25 | return $a + $b; |
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| 26 | }; |
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| 27 | } |
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| 28 | ||
| 29 | /** |
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| 30 | * Returns a closure that subtracts one number from another |
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| @@ 34-45 (lines=12) @@ | ||
| 31 | * |
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| 32 | * @return \Closure |
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| 33 | */ |
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| 34 | function sub() |
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| 35 | { |
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| 36 | return function ($a, $b) { |
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| 37 | if (!is_numeric($a)) { |
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| 38 | throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform subtraction, not %s', is_object($a) ? get_class($a) : gettype($a))); |
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| 39 | } |
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| 40 | if (!is_numeric($b)) { |
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| 41 | throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform subtraction, not %s', is_object($b) ? get_class($b) : gettype($b))); |
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| 42 | } |
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| 43 | return $a - $b; |
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| 44 | }; |
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| 45 | } |
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| 46 | ||
| 47 | /** |
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| 48 | * Returns a closure that multiplies two numbers |
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| @@ 52-63 (lines=12) @@ | ||
| 49 | * |
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| 50 | * @return \Closure |
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| 51 | */ |
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| 52 | function mul() |
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| 53 | { |
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| 54 | return function ($a, $b) { |
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| 55 | if (!is_numeric($a)) { |
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| 56 | throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to perform multiplication, not %s', is_object($a) ? get_class($a) : gettype($a))); |
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| 57 | } |
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| 58 | if (!is_numeric($b)) { |
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| 59 | throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to perform multiplication, not %s', is_object($b) ? get_class($b) : gettype($b))); |
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| 60 | } |
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| 61 | return $a * $b; |
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| 62 | }; |
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| 63 | } |
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| 64 | ||
| 65 | /** |
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| 66 | * Returns a closure that returns the smallest of two numbers |
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| @@ 70-81 (lines=12) @@ | ||
| 67 | * |
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| 68 | * @return \Closure |
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| 69 | */ |
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| 70 | function min() |
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| 71 | { |
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| 72 | return function ($a, $b) { |
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| 73 | if (!is_numeric($a)) { |
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| 74 | throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to determine minimum, not %s', is_object($a) ? get_class($a) : gettype($a))); |
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| 75 | } |
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| 76 | if (!is_numeric($b)) { |
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| 77 | throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to determine minimum, not %s', is_object($b) ? get_class($b) : gettype($b))); |
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| 78 | } |
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| 79 | return $a < $b ? $a : $b; |
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| 80 | }; |
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| 81 | } |
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| 82 | ||
| 83 | /** |
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| 84 | * Returns a closure that returns the largest of two numbers |
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| @@ 88-99 (lines=12) @@ | ||
| 85 | * |
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| 86 | * @return \Closure |
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| 87 | */ |
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| 88 | function max() |
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| 89 | { |
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| 90 | return function ($a, $b) { |
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| 91 | if (!is_numeric($a)) { |
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| 92 | throw new \InvalidArgumentException(sprintf('Argument $A must be numeric to determine maximum, not %s', is_object($a) ? get_class($a) : gettype($a))); |
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| 93 | } |
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| 94 | if (!is_numeric($b)) { |
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| 95 | throw new \InvalidArgumentException(sprintf('Argument $B must be numeric to determine maximum, not %s', is_object($b) ? get_class($b) : gettype($b))); |
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| 96 | } |
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| 97 | return $a < $b ? $b : $a; |
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| 98 | }; |
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| 99 | } |
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| 100 | ||
| 101 | /** |
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| 102 | * Returns a closure that concatenates two strings using $glue |
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