tmp/tmpgyyth9y9/{from.md → to.md}
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### [[temp]]: templates <a id="diff.cpp20.temp">[[diff.cpp20.temp]]</a>
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**Change:** Deducing template arguments from exception specifications.
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**Rationale:** Facilitate generic handling of throwing and non-throwing
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functions. **Effect on original feature:** Valid ISO C++20 code may be
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ill-formed in this revision of C++.
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``` cpp
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template<bool> struct A { };
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template<bool B> void f(void (*)(A<B>) noexcept(B));
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void g(A<false>) noexcept;
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void h() {
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f(g); // ill-formed; previously well-formed
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}
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```
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### [[temp]]: templates <a id="diff.cpp20.temp">[[diff.cpp20.temp]]</a>
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**Change:** Deducing template arguments from exception specifications.
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**Rationale:** Facilitate generic handling of throwing and non-throwing
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functions. **Effect on original feature:** Valid ISO C++20 code may be
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+
ill-formed in this revision of C++.
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+
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+
[*Example 1*:
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``` cpp
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template<bool> struct A { };
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template<bool B> void f(void (*)(A<B>) noexcept(B));
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void g(A<false>) noexcept;
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void h() {
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f(g); // ill-formed; previously well-formed
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}
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```
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+
— *end example*]
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