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What general tips do you have for golfing in 1+? I'm looking for ideas which can be applied to code-golf problems and which are also at least somewhat specific to 1+ (e.g. "remove unnecessary whitespace" is not an answer).

Please post one tip per answer.

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  • \$\begingroup\$ This 1+? \$\endgroup\$
    – Unrelated String
    Sep 24, 2019 at 4:45
  • \$\begingroup\$ @UnrelatedString Yes. \$\endgroup\$
    – TwilightSparkle
    Sep 24, 2019 at 4:45
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    \$\begingroup\$ Are there actually any answers on this site that use 1+? I'm all for tips pages, but they don't seem necessary if no-one has ever even used the language here. \$\endgroup\$
    – caird coinheringaahin g ♦
    Sep 24, 2019 at 8:17
  • \$\begingroup\$ @cairdcoinheringaahing Oops. I will do it, then. (Though, because it's a Turing-tarpit, it would be very hard to do simple tasks for usual languages, e. g. ROT13.) \$\endgroup\$
    – TwilightSparkle
    Sep 24, 2019 at 9:45
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    \$\begingroup\$ @TwilightSparkle Why is that hosted on Tumblr??? That's bizarre. Here's a Gist: gist.github.com/DJMcMayhem/c7186ae2890b5c8a54e38ba7a595a7d5 \$\endgroup\$
    – DJMcMayhem
    Sep 24, 2019 at 14:40

3 Answers 3

Reset to default
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Subroutines can have empty names

(|1+1<) is a valid definition for a subroutine, invoked as ().

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Instead of pushing 0 and compare, do something to other numbers

As 1 is the only literal in 1+ and there's no minus operation, pushing 0 would be expensive (11+1<). A better choice would be change other numbers, so 1 becomes a "relative" 0. For example, if you want to flip a bit, instead of 11+1<<, you can 1+1<.

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Use comments for conditionals

Found this while exploiting interpreter features. Apparently Parcly Taxel thinks comments and conditionals are similar because both of them begins with "co". The comment indicators [] are actually instructions because there's no such thing called parsers in 1+.

This trick can sometimes save you and a few bytes from the comparison mess.

Found while exploiting interpreter features, then made a Truth-Machine with it.

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