<random>: Cannot save/restore a ranlux48 object in a stream

[BillyONeal]

Describe the bug
It appears that the textual representation of ranlux48 is incorrect

Command-line test case
STL version (git commit or Visual Studio version): Visual Studio 2019 version 16.4 (but goes back effectively forever)

C:\Users\bion\Desktop>type test.cpp
#include <iostream>
#include <random>
#include <sstream>

template <typename RND> void check(const char *name) {
  RND g1, g2;
  std::cout << std::boolalpha << name << ": " << (g1 == g2);
  std::stringstream s;
  s << g1;
  s >> g1;
  std::cout << " " << (g1 == g2) << std::endl;
}

int main() {
  check<std::ranlux48>("ranlux48");
  check<std::ranlux24>("ranlux24");
  check<std::mt19937>("mt19937");
}

C:\Users\bion\Desktop>cl /EHsc /W4 /WX /std:c++latest /nologo .\test.cpp
test.cpp

C:\Users\bion\Desktop>.\test.exe
ranlux48: true false
ranlux24: true true
mt19937: true true

C:\Users\bion\Desktop>

Expected behavior
ranlux48: true true
ranlux24: true true
mt19937: true true

This issue is a dual of Microsoft-internal VSO-104809 and DevCom-249085

[StephanTLavavej]

I believe this should be resolved as a duplicate of #442. Observe:

STL/stl/inc/random

Line 4933 in 2989323

using ranlux48_base = subtract_with_carry_engine<unsigned long long, 48, 5, 12>;

STL/stl/inc/random

Line 4935 in 2989323

using ranlux48 = discard_block_engine<ranlux48_base, 389, 11>;