Clarify core is required for define_histogram

This commit is contained in:
Vinzent Steinberg 2018-07-24 18:52:40 +02:00
parent 159af1df99
commit 5807e211dc

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@ -4,6 +4,8 @@
/// module with the given name. This includes the `Histogram` struct, the number /// module with the given name. This includes the `Histogram` struct, the number
/// of bins `LEN` and the histogram iterator `HistogramIter`. /// of bins `LEN` and the histogram iterator `HistogramIter`.
/// ///
/// Note that you need to make sure that `core` is accessible to the macro.
///
/// ///
/// # Example /// # Example
/// ///