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Merge branch 'develop' into ximinez/lending-refactoring-1

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This commit is contained in:
Ed Hennis
2025-07-22 14:09:37 -04:00
committed by GitHub
parent 96f2a65f64 60909655d3
commit e037ae3d3a
1 changed files with 14 additions and 24 deletions
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38
include/xrpl/beast/utility/rngfill.h
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@@ -31,38 +31,28 @@ namespace beast {
template <class Generator> template <class Generator>
void void
rngfill(void* buffer, std::size_t bytes, Generator& g) rngfill(void* const buffer, std::size_t const bytes, Generator& g)
{ {
using result_type = typename Generator::result_type; using result_type = typename Generator::result_type;
constexpr std::size_t result_size = sizeof(result_type);
while (bytes >= sizeof(result_type)) std::uint8_t* const buffer_start = static_cast<std::uint8_t*>(buffer);
std::size_t const complete_iterations = bytes / result_size;
std::size_t const bytes_remaining = bytes % result_size;
for (std::size_t count = 0; count < complete_iterations; ++count)
{ {
auto const v = g(); result_type const v = g();
std::memcpy(buffer, &v, sizeof(v)); std::size_t const offset = count * result_size;
buffer = reinterpret_cast<std::uint8_t*>(buffer) + sizeof(v); std::memcpy(buffer_start + offset, &v, result_size);
bytes -= sizeof(v);
} }
XRPL_ASSERT( if (bytes_remaining > 0)
bytes < sizeof(result_type), "beast::rngfill(void*) : maximum bytes");
#ifdef __GNUC__
// gcc 11.1 (falsely) warns about an array-bounds overflow in release mode.
// gcc 12.1 (also falsely) warns about an string overflow in release mode.
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Warray-bounds"
#pragma GCC diagnostic ignored "-Wstringop-overflow"
#endif
if (bytes > 0)
{ {
auto const v = g(); result_type const v = g();
std::memcpy(buffer, &v, bytes); std::size_t const offset = complete_iterations * result_size;
std::memcpy(buffer_start + offset, &v, bytes_remaining);
} }
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
} }
template < template <