https://bugs.llvm.org/show_bug.cgi?id=40480

            Bug ID: 40480
           Summary: clang-format gets confused with custom for each macro
           Product: clang
           Version: 7.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Formatter
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected], [email protected],
                    [email protected]

For the test case below that uses a for each macro M_EACH provided by some
library to iterate over a container:

int f(aint_t a)
{
  int s = 0;
  for M_EACH(item, a, aint_t) {
      int z = *item;
      s += z;
  }
  return s;
}

is transformed into:

int f(aint_t a) {
  int s = 0;
  for
    M_EACH(item, a, aint_t) {
      int z = *item;
      s += z;
    }
  return s;
}

There is no option to prevent the end of line after the for and before the
M_EACH macro.

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