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06991b51ef
* examples/foreach2.m4: Use $0 rather than spelling out name. * examples/foreachq2.m4: Likewise. * examples/forloop2.m4: Likewise. * examples/hanoi.m4: Likewise. * examples/trace.m4: Likewise. * doc/m4.texinfo (Improved forloop): Document advantage of $0. (Improved foreach): Adjust dump from file. Signed-off-by: Eric Blake <ebb9@byu.net>
18 lines
373 B
Plaintext
18 lines
373 B
Plaintext
divert(-1)
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# move(from, to)
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define(`move', `Move one disk from `$1' to `$2'.
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')
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# _hanoi (cnt, from, to, aux)
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define(`_hanoi', `ifelse(eval(`$1'<=1), 1, `move($2, $3)',
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`$0(decr($1), $2, $4, $3)move($2, $3)$0(decr($1), $4, $3, $2)')')
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# hanoi (cnt)
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define(`hanoi', `_$0(`$1', source, destination, auxilliary)')
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# traceon(`move', `_hanoi', `decr')
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divert`'dnl
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hanoi(3)
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