}
-// IsLittleEndian : true if and only if the binary is compiled on a little endian machine
+// IsLittleEndian : true if and only if the binary is compiled on a little-endian machine
static inline const union { uint32_t i; char c[4]; } Le = { 0x01020304 };
static inline const bool IsLittleEndian = (Le.c[0] == 4);
};
-/// xorshift64star Pseudo-Random Number Generator
-/// This class is based on original code written and dedicated
-/// to the public domain by Sebastiano Vigna (2014).
-/// It has the following characteristics:
-///
-/// - Outputs 64-bit numbers
-/// - Passes Dieharder and SmallCrush test batteries
-/// - Does not require warm-up, no zeroland to escape
-/// - Internal state is a single 64-bit integer
-/// - Period is 2^64 - 1
-/// - Speed: 1.60 ns/call (Core i7 @3.40GHz)
-///
-/// For further analysis see
-/// <http://vigna.di.unimi.it/ftp/papers/xorshift.pdf>
+// xorshift64star Pseudo-Random Number Generator
+// This class is based on original code written and dedicated
+// to the public domain by Sebastiano Vigna (2014).
+// It has the following characteristics:
+//
+// - Outputs 64-bit numbers
+// - Passes Dieharder and SmallCrush test batteries
+// - Does not require warm-up, no zeroland to escape
+// - Internal state is a single 64-bit integer
+// - Period is 2^64 - 1
+// - Speed: 1.60 ns/call (Core i7 @3.40GHz)
+//
+// For further analysis see
+// <http://vigna.di.unimi.it/ftp/papers/xorshift.pdf>
class PRNG {
template<typename T> T rand() { return T(rand64()); }
- /// Special generator used to fast init magic numbers.
- /// Output values only have 1/8th of their bits set on average.
+ // Special generator used to fast init magic numbers.
+ // Output values only have 1/8th of their bits set on average.
template<typename T> T sparse_rand()
{ return T(rand64() & rand64() & rand64()); }
};
#endif
}
-/// Under Windows it is not possible for a process to run on more than one
-/// logical processor group. This usually means to be limited to use max 64
-/// cores. To overcome this, some special platform specific API should be
-/// called to set group affinity for each thread. Original code from Texel by
-/// Peter Ă–sterlund.
+// Under Windows it is not possible for a process to run on more than one
+// logical processor group. This usually means being limited to using max 64
+// cores. To overcome this, some special platform-specific API should be
+// called to set group affinity for each thread. Original code from Texel by
+// Peter Ă–sterlund.
namespace WinProcGroup {
void bindThisThread(size_t idx);