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#include <algorithm>
#include <cassert>
#include <iostream>
#include <vector>
void foo() {
std::vector<bool> vb(30);
//std::fill(vb.begin(), vb.end(), true);
assert( std::none_of(vb.begin(), vb.end(), [](bool b){return b;}) );
vb[3] = true;
assert( ! std::none_of(vb.begin(), vb.end(), [](bool b){return b;}) );
assert( std::any_of(vb.begin(), vb.end(), [](bool b){return b;}) );
assert( ! std::all_of(vb.begin(), vb.end(), [](bool b){return b;}) );
std::fill(vb.begin(), vb.end(), true);
assert( std::all_of(vb.begin(), vb.end(), [](bool b){return b;}) );
}
int main(int argc, char** argv) {
for( int i = 0; i < 10; ++i )
foo();
return 0;
}
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