Systematically fix CodeQL warnings

unitaryfund · Nov 21, 2024 · a3d9854 · a3d9854
1 parent eb396fa
commit a3d9854
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diff --git a/include/common/qrack_types.hpp b/include/common/qrack_types.hpp
@@ -60,13 +60,17 @@
 
 #if QBCAPPOW < 6
 #define bitCapInt uint32_t
+#define QRACK_MAX_QUBITS 32
 #elif QBCAPPOW < 7
 #define bitCapInt uint64_t
+#define QRACK_MAX_QUBITS 64
 #elif (QBCAPPOW < 8) && defined(__SIZEOF_INT128__)
 #define bitCapInt unsigned __int128
+#define QRACK_MAX_QUBITS 128
 #else
 #include "big_integer.hpp"
 #define bitCapInt BigInteger
+constexpr size_t QRACK_MAX_QUBITS = (1 << QBCAPPOW);
 #endif
 
 #if FPPOW < 5

diff --git a/src/qinterface/qinterface.cpp b/src/qinterface/qinterface.cpp
@@ -35,6 +35,11 @@ QInterface::QInterface(
     , rand_distribution(ZERO_R1_F, ONE_R1_F)
     , hardware_rand_generator(NULL)
 {
+    if (qubitCount > QRACK_MAX_QUBITS) {
+        throw std::invalid_argument(
+            "Requested QInterface qubit count is larger than the limits of the current Qrack build options!");
+    }
+
 #if ENABLE_RDRAND || ENABLE_RNDFILE || ENABLE_DEVRAND
     if (useHardwareRNG) {
         hardware_rand_generator = std::make_shared<RdRandom>();