9866abe31e
Implement this change for C++20 that was just approved in Prague. P1956R1 On the names of low-level bit manipulation functions * include/bits/hashtable_policy.h: Update comment. * include/std/bit (__ispow2, __ceil2, __floor2, __log2p1): Rename. (ispow2, ceil2, floor2, log2p1): Likewise. (__cpp_lib_int_pow2): Add feature test macro. * include/std/charconv (__to_chars_len_2): Adjust use of __log2p1. * include/std/memory (assume_aligned): Adjust use of ispow2. * include/std/version (__cpp_lib_int_pow2): Add. * libsupc++/new_opa.cc: Adjust use of __ispow2. * src/c++17/memory_resource.cc: Likewise, and for __ceil2 and __log2p1. * testsuite/17_intro/freestanding.cc: Adjust use of ispow2. * testsuite/26_numerics/bit/bit.pow.two/ceil2.cc: Rename to ... * testsuite/26_numerics/bit/bit.pow.two/bit_ceil.cc: ... here. * testsuite/26_numerics/bit/bit.pow.two/ceil2_neg.cc: Rename to ... * testsuite/26_numerics/bit/bit.pow.two/bit_ceil_neg.cc: ... here. * testsuite/26_numerics/bit/bit.pow.two/floor2.cc: Rename to ... * testsuite/26_numerics/bit/bit.pow.two/bit_floor.cc: ... here. * testsuite/26_numerics/bit/bit.pow.two/log2p1.cc: Rename to ... * testsuite/26_numerics/bit/bit.pow.two/bit_width.cc: ... here. * testsuite/26_numerics/bit/bit.pow.two/ispow2.cc: Rename to ... * testsuite/26_numerics/bit/bit.pow.two/has_single_bit.cc: ... here. |
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