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-rw-r--r--src/consensus/params.h4
-rw-r--r--src/deploymentstatus.cpp17
2 files changed, 19 insertions, 2 deletions
diff --git a/src/consensus/params.h b/src/consensus/params.h
index 9205cfee87..77bf7fd0d8 100644
--- a/src/consensus/params.h
+++ b/src/consensus/params.h
@@ -23,7 +23,7 @@ enum BuriedDeployment : int16_t {
DEPLOYMENT_CSV,
DEPLOYMENT_SEGWIT,
};
-constexpr bool ValidDeployment(BuriedDeployment dep) { return DEPLOYMENT_HEIGHTINCB <= dep && dep <= DEPLOYMENT_SEGWIT; }
+constexpr bool ValidDeployment(BuriedDeployment dep) { return dep <= DEPLOYMENT_SEGWIT; }
enum DeploymentPos : uint16_t {
DEPLOYMENT_TESTDUMMY,
@@ -31,7 +31,7 @@ enum DeploymentPos : uint16_t {
// NOTE: Also add new deployments to VersionBitsDeploymentInfo in deploymentinfo.cpp
MAX_VERSION_BITS_DEPLOYMENTS
};
-constexpr bool ValidDeployment(DeploymentPos dep) { return DEPLOYMENT_TESTDUMMY <= dep && dep <= DEPLOYMENT_TAPROOT; }
+constexpr bool ValidDeployment(DeploymentPos dep) { return dep < MAX_VERSION_BITS_DEPLOYMENTS; }
/**
* Struct for each individual consensus rule change using BIP9.
diff --git a/src/deploymentstatus.cpp b/src/deploymentstatus.cpp
index 9007800421..bba86639a3 100644
--- a/src/deploymentstatus.cpp
+++ b/src/deploymentstatus.cpp
@@ -7,6 +7,8 @@
#include <consensus/params.h>
#include <versionbits.h>
+#include <type_traits>
+
VersionBitsCache g_versionbitscache;
/* Basic sanity checking for BuriedDeployment/DeploymentPos enums and
@@ -15,3 +17,18 @@ VersionBitsCache g_versionbitscache;
static_assert(ValidDeployment(Consensus::DEPLOYMENT_TESTDUMMY), "sanity check of DeploymentPos failed (TESTDUMMY not valid)");
static_assert(!ValidDeployment(Consensus::MAX_VERSION_BITS_DEPLOYMENTS), "sanity check of DeploymentPos failed (MAX value considered valid)");
static_assert(!ValidDeployment(static_cast<Consensus::BuriedDeployment>(Consensus::DEPLOYMENT_TESTDUMMY)), "sanity check of BuriedDeployment failed (overlaps with DeploymentPos)");
+
+/* ValidDeployment only checks upper bounds for ensuring validity.
+ * This checks that the lowest possible value or the type is also a
+ * (specific) valid deployment so that lower bounds don't need to be checked.
+ */
+
+template<typename T, T x>
+static constexpr bool is_minimum()
+{
+ using U = typename std::underlying_type<T>::type;
+ return x == std::numeric_limits<U>::min();
+}
+
+static_assert(is_minimum<Consensus::BuriedDeployment, Consensus::DEPLOYMENT_HEIGHTINCB>(), "heightincb is not minimum value for BuriedDeployment");
+static_assert(is_minimum<Consensus::DeploymentPos, Consensus::DEPLOYMENT_TESTDUMMY>(), "testdummy is not minimum value for DeploymentPos");