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Perform an action multiple times based on a boolean condition, checked before the first action (WHILE .. DO)

Starting with a variable x=1, Print the sequence "1,2,4,8,16,32,64,128," by doubling x and checking that x is less than 150.
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cpp C++/CLI .NET 2.0
int x = 1;

while (x < 150) { x *= 2; Console::Write("{0},", x); }
Console::WriteLine();
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cpp
for (int x = 1; x < 150; x *= 2) { std::cout << x << ","; }
std::cout << std::endl;

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