c9dce3b15e
The std::uninitialized_fill_n algorithm uses sd::fill_n for trivial types, but that algorithm has a stronger requirement that the Size parameter is convertible to an integral type. As the new test shows, there are types which are valid for std::uninitialized_fill_n but which produce a different result when converted to an integral type, or cannot be converted at all. Only use the std::fill_n optimization when the Size type is already an integral type. The std::__uninitialized_default_n extension has the same problem, and so does C++17's std::uninitialized_value_construct_n which uses it. * include/bits/stl_uninitialized.h (uninitialized_fill_n): Only use std::fill_n when the size is an integral type. (__uninitialized_default_n): Likewise. * testsuite/20_util/specialized_algorithms/uninitialized_default_n/sizes.cc: New test. * testsuite/20_util/specialized_algorithms/uninitialized_fill_n/sizes.cc: New test. * testsuite/20_util/specialized_algorithms/uninitialized_value_construct_n/sizes.cc: New test. |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
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| libgfortran | ||
| libgo | ||
| libgomp | ||
| libhsail-rt | ||
| libiberty | ||
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