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 7IMPLICIT CHARACTER*5 (h-z) 8 9CHARACTER*5 f 10CHARACTER*5 bad, good 11parameter(bad="a", good="(a)") 12 13PRINT ('a'), "hello" ! { dg-error "Missing leading left parenthesis in format string" } 14WRITE (*, ("a")) "error" ! { dg-error "Missing leading left parenthesis in format string" } 15 16PRINT 'a', "hello" ! { dg-error "Missing leading left parenthesis in format string" } 17WRITE (*, "a") "error" ! { dg-error "Missing leading left parenthesis in format string" } 18WRITE (*, bad) "error" ! { dg-error "Missing leading left parenthesis in format string" } 19 20PRINT 'a' // ', a', "err", "or" ! { dg-error "Missing leading left parenthesis in format string" } 21 22PRINT '(' // 'a' ! { dg-error "Unexpected end of format string in format string" } 23 24! the following are ok 25PRINT "(2f5.3)", bar, foo 26PRINT ' (a)', "hello" 27WRITE (*, " ((a))") "hello" 28print "(a" // ")", "all is fine" 29print good, "great" 30 31! verify that we haven't broken non-constant expressions 32f = "(f5.3)" 33print f, 3.14159 34print (f), 2.71813 35print implicitly_typed, "something" 36write (*, implicitly_typed_as_well) "something else" 37END 38