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8
Task/Generic-swap/M4/generic-swap.m4
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8
Task/Generic-swap/M4/generic-swap.m4
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define(`def2', `define(`$1',`$2')define(`$3',`$4')')dnl
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define(`swap', `def2(`$1',defn(`$2'),`$2',defn(`$1'))')dnl
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dnl
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define(`a',`x')dnl
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define(`b',`y')dnl
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a b
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swap(`a',`b')
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a b
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