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Underscores in numeric literals #3283

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ghost opened this issue Oct 25, 2023 · 0 comments · Fixed by #3746
Closed

Underscores in numeric literals #3283

ghost opened this issue Oct 25, 2023 · 0 comments · Fixed by #3746
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enhancement New feature or request

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@ghost
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ghost commented Oct 25, 2023

Problem

this code does not compile:

fn main() {
    let xs = 1_000;
}
error: Expected a ; separating these two statements
  ┌─ hello/src/main.nr:2:14
  │
2 │     let n = 1_000;
  │              ----
  │

Happy Case

using underscores in numeric literals can make code more readable and help developers better understand and work with large numbers

fn main() {
    // Integer literals with underscores
    let one_million = 1_000_000;
    let ten_million = 10_000_000;
    let one_billion = 1_000_000_000;

    // Floating-point literals with underscores
    let pi_approximation = 3.14_15;
    let avogadros_number = 6.022_140_76e23;

    // Binary literals with underscores
    let binary_value = 0b1101_0101_1010_1101;

    // Hexadecimal literals with underscores
    let hex_value = 0x1A3B_7FFF;
}

Alternatives Considered

No response

Additional Context

No response

Would you like to submit a PR for this Issue?

No

Support Needs

No response

@ghost ghost added the enhancement New feature or request label Oct 25, 2023
github-merge-queue bot pushed a commit that referenced this issue Dec 9, 2023
# Description

## Problem\*

Resolves #3283 

## Summary\*

This PR adds support for underscores in numeric literals. This is
restricted to not allow multiple underscores in a row and a literal
cannot start or end with an underscore.

## Additional Context



## Documentation\*

Check one:
- [ ] No documentation needed.
- [ ] Documentation included in this PR.
- [ ] **[Exceptional Case]** Documentation to be submitted in a separate
PR.

# PR Checklist\*

- [x] I have tested the changes locally.
- [x] I have formatted the changes with [Prettier](https://prettier.io/)
and/or `cargo fmt` on default settings.

---------

Co-authored-by: Tom French <15848336+TomAFrench@users.noreply.github.com>
Co-authored-by: kevaundray <kevtheappdev@gmail.com>
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