Class rng_gsl (o2scl)¶
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class o2scl::rng_gsl : public gsl_rng¶
Random number generator (GSL)
If
seed
is zero, or is not given, then the default seed specific to the particular random number generator is used.- Idea for Future:
This is being replaced by o2scl::rng now that C++11 support is more widespread.
Public Types
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typedef unsigned long int result_type¶
Desc.
Public Functions
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rng_gsl(const gsl_rng_type *gtype = gsl_rng_mt19937)¶
Initialize the random number generator with type
gtype
and the default seed.
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rng_gsl(unsigned long int seed, const gsl_rng_type *gtype = gsl_rng_mt19937)¶
Initialize the random number generator with
seed
.
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~rng_gsl()¶
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inline const gsl_rng_type *get_type()¶
Return generator type.
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inline result_type operator()()¶
Return a random number in \((0,1]\).
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inline double random()¶
Return a random number in \((0,1]\).
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inline double entropy()¶
Return the entropy (0.0 since not applicable for pseudo-random engines.
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inline unsigned long int max()¶
Return the maximum integer for random_int()
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inline unsigned long int min()¶
Return the minimum integer for random_int()
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unsigned long int random_int(unsigned long int max = 0)¶
Return random integer in \([0,\mathrm{max}-1]\).
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inline void set_seed(unsigned long int s)¶
Set the seed.
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inline unsigned long int get_seed()¶
Get the seed.
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inline void clock_seed()¶
Set the seed.