text: """
  Interaction with GCC error output
  """
  import re
  
  regex = re.compile(r'(?P<fname>[\w\d\]\.c):(?P<line>\d+):(?P<col>\d+)')
  
  def find_errors(output):
      return regex.finditer(output)
  
  
  
  def test_errors():
      example_output = '''
      main.c:10:1: warning: control reaches end of non-void function [-Wreturn-type] }\
       ^ main.c:13:1: warning: type specifier missing, defaults to \
       'int' [-Wimplicit-int] float64[381][381] a,b, c; ^ \
       main.c:13:18: error: expected ';' after top level declarator float64[381][381] a,b, c; ^ ; main.c:20:44: warning: cast to 'void *' from smaller integer type 'int' [-Wint-to-void-pointer-cast] pthread_create(&hilos[i], NULL, f, (void *)i); ^ 3 warnings and 1 error generated.
  
      '''
      errors = find_errors(example_output)
      assert errors == []
  
  