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Docs: added brief colon explanation #132393

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Nov 3, 2024
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Docs: added brief colon explanation #132393

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10 changes: 10 additions & 0 deletions library/alloc/src/fmt.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -109,6 +109,16 @@
//! parameters (corresponding to `format_spec` in [the syntax](#syntax)). These
//! parameters affect the string representation of what's being formatted.
//!
//! The colon `:` in format syntax divides indentifier of the input data and
//! the formatting options, the colon itself does not change anything, only
//! introduces the options.
//!
//! ```
//! let a = 5;
//! let b = &a;
//! println!("{a:e} {b:p}"); // => 5e0 0x7ffe37b7273c
//! ```
//!
//! ## Width
//!
//! ```
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