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[ncp] conform with c++11 constexpr and static_assert (#4416)

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C++11 constexpr doesn't support local variables and loop. This commit
uses recursive way to assert handlers are sorted.

C++11 static_assert requires a message. This commit adds the missing
messages to static_assert calls.
This commit is contained in:
Yakun Xu
2019-12-17 22:42:35 -08:00
committed by Jonathan Hui
parent 420479d899
commit 2327072563
2 changed files with 9 additions and 15 deletions
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src/ncp/ncp_base.hpp
+1 -1
View File
@@ -213,7 +213,7 @@ protected:
otError HandleCommand(uint8_t aHeader);
#if __cplusplus >= 201103L
static constexpr bool IsHandlerEntriesSorted(const HandlerEntry *aHandlerEntries, size_t aSize);
static constexpr bool AreHandlerEntriesSorted(const HandlerEntry *aHandlerEntries, size_t aSize);
#endif
static PropertyHandler FindPropertyHandler(const HandlerEntry *aHandlerEntries,
src/ncp/ncp_base_dispatcher.cpp
+8 -14
View File
@@ -36,19 +36,11 @@ namespace ot {
namespace Ncp {
#if __cplusplus >= 201103L
constexpr bool NcpBase::IsHandlerEntriesSorted(const HandlerEntry *aHandlerEntries, size_t aSize)
constexpr bool NcpBase::AreHandlerEntriesSorted(const HandlerEntry *aHandlerEntries, size_t aSize)
{
bool rval = true;
for (size_t i = 1; i < aSize; ++i)
{
if (aHandlerEntries[i].mKey <= aHandlerEntries[i - 1].mKey)
{
rval = false;
}
}
return rval;
return aSize < 2 ? true
: ((aHandlerEntries[aSize - 1].mKey > aHandlerEntries[aSize - 2].mKey) &&
AreHandlerEntriesSorted(aHandlerEntries, aSize - 1));
}
#endif
@@ -352,7 +344,8 @@ NcpBase::PropertyHandler NcpBase::FindGetPropertyHandler(spinel_prop_key_t aKey)
};
#if __cplusplus >= 201103L
static_assert(IsHandlerEntriesSorted(sHandlerEntries, OT_ARRAY_LENGTH(sHandlerEntries)));
static_assert(AreHandlerEntriesSorted(sHandlerEntries, OT_ARRAY_LENGTH(sHandlerEntries)),
"NCP property getter entries not sorted!");
#endif
return FindPropertyHandler(sHandlerEntries, OT_ARRAY_LENGTH(sHandlerEntries), aKey);
@@ -568,7 +561,8 @@ NcpBase::PropertyHandler NcpBase::FindSetPropertyHandler(spinel_prop_key_t aKey)
};
#if __cplusplus >= 201103L
static_assert(IsHandlerEntriesSorted(sHandlerEntries, OT_ARRAY_LENGTH(sHandlerEntries)));
static_assert(AreHandlerEntriesSorted(sHandlerEntries, OT_ARRAY_LENGTH(sHandlerEntries)),
"NCP property setter entries not sorted!");
#endif
return FindPropertyHandler(sHandlerEntries, OT_ARRAY_LENGTH(sHandlerEntries), aKey);