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Using ADL everywhere for lexical_cast (#820)

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* Using ADL everywhere for lexical_cast

* Fixes in docs

* Add a test for old extension mechanism

* style: pre-commit.ci fixes

* Make gcc happy

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Philip Top <phlptp@gmail.com>
This commit is contained in:
captainurist
2023-01-02 23:09:27 +08:00
committed by GitHub
parent fbe1763675
commit 3897109e51
9 changed files with 135 additions and 38 deletions
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4
book/chapters/internals.md
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@@ -8,9 +8,9 @@ classes or inheritance. This is accomplished through lambda functions.
This looks like:
```cpp
Option* add_option(string name, T item) {
Option* add_option(string name, T &item) {
this->function = [&item](string value){
item = detail::lexical_cast<T>(value);
return lexical_cast(value, item);
}
}
```