public static member function
<random>
static constexpr result_type max();
Maximum value
Returns the maximum value potentially returned by member operator(), which for mersenne_twister_engine is 2w-1 (where w is the word size specified as the second class template parameter).
Return value
2word_size-1
result_type is a member type, defined as an alias of the first class template parameter (UIntType).
Example
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// mersenne_twister_engine::min and max
#include <iostream>
#include <chrono>
#include <random>
int main ()
{
unsigned seed = std::chrono::system_clock::now().time_since_epoch().count();
std::mt19937 generator (seed); // mt19937 is a standard mersenne_twister_engine
std::cout << generator() << " is a random number between ";
std::cout << generator.min() << " and " << generator.max();
return 0;
}
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Possible output:
2137850808 is a random number between 0 and 4294967295
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Complexity
None (compile-time constant).