9017326e19
The [cmath.syn] p1 wording about additional overloads sufficient to handle any arithmetic types also applies to std::lerp. This adds a new overload of std::lerp that does the required promotions to support arguments of arbitrary arithmetic types. A new __promoted_t alias template is added, which the C++17 function templates std::hypot and std::lerp can use to avoid instantiating the __promote_3 class template. Signed-off-by: Jonathan Wakely <jwakely@redhat.com> libstdc++-v3/ChangeLog: PR libstdc++/101870 * include/c_global/cmath (hypot): Use __promoted_t. (lerp): Add new overload accepting any arithmetic types. * include/ext/type_traits.h (__promoted_t): New alias template. * testsuite/26_numerics/lerp.cc: Moved to... * testsuite/26_numerics/lerp/1.cc: ...here. * testsuite/26_numerics/lerp/constexpr.cc: New test. * testsuite/26_numerics/lerp/version.cc: New test. |
||
|---|---|---|
| .. | ||
| cassert | ||
| ccomplex | ||
| cctype | ||
| cerrno | ||
| cfenv | ||
| cfloat | ||
| cinttypes | ||
| ciso646 | ||
| climits | ||
| clocale | ||
| cmath | ||
| csetjmp | ||
| csignal | ||
| cstdalign | ||
| cstdarg | ||
| cstdbool | ||
| cstddef | ||
| cstdint | ||
| cstdio | ||
| cstdlib | ||
| cstring | ||
| ctgmath | ||
| ctime | ||
| cuchar | ||
| cwchar | ||
| cwctype | ||