gcc/testsuite/gfortran.dg/fmt_error_2.f90

   1 ! { dg-do compile }
   2 ! { dg-options "-std=legacy" }
   3 !
   4 ! PR 33269: we used to not simplify format strings before checking if
   5 ! they were valid, leading to a missed error.
   6
   7 IMPLICIT CHARACTER*5 (h-z)
   8
   9 CHARACTER*5 f
  10 CHARACTER*5 bad, good
  11 parameter(bad="a", good="(a)")
  12
  13 PRINT ('a'), "hello" ! { dg-error "Missing leading left parenthesis in format string" }
  14 WRITE (*, ("a")) "error"  ! { dg-error "Missing leading left parenthesis in format string" }
  15
  16 PRINT 'a', "hello" ! { dg-error "Missing leading left parenthesis in format string" }
  17 WRITE (*, "a") "error"  ! { dg-error "Missing leading left parenthesis in format string" }
  18 WRITE (*, bad) "error"  ! { dg-error "Missing leading left parenthesis in format string" }
  19
  20 PRINT 'a' // ', a', "err", "or"   ! { dg-error "Missing leading left parenthesis in format string" }
  21
  22 PRINT '(' // 'a'  ! { dg-error "Unexpected end of format string in format string" }
  23
  24 ! the following are ok
  25 PRINT "(2f5.3)", bar, foo
  26 PRINT ' (a)', "hello"
  27 WRITE (*, " ((a))") "hello"
  28 print "(a" // ")", "all is fine"
  29 print good, "great"
  30
  31 ! verify that we haven't broken non-constant expressions
  32 f = "(f5.3)"
  33 print f, 3.14159
  34 print (f), 2.71813
  35 print implicitly_typed, "something"
  36 write (*, implicitly_typed_as_well) "something else"
  37 END