gistfile1.txt

simon@odin-linux  ~  g++ -Wall test.cpp
test.cpp: In function ‘int main(int, const char**)’:
test.cpp:4:2: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
  if (0)
  ^~
test.cpp:6:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
   std::cout << "blah" << std::endl;
   ^~~

test.cpp

#include <iostream>

int main(int argc, const char **argv) {
	if (0)
		std::cout << "blah" << std::endl;
		std::cout << "blah" << std::endl;
}