[LLVMbugs] [Bug 7606] New: Poor diagnostic for a typo of ',' instead of '; ' at the end of an statement

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=7606

           Summary: Poor diagnostic for a typo of ',' instead of ';' at
                    the end of an statement
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Keywords: quality-of-implementation
          Severity: normal
          Priority: P
         Component: -New Bugs
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: chandlerc at gmail.com
                CC: llvmbugs at cs.uiuc.edu


This diagnostic could be a *lot* better, at the least poniting at the ','
operator, and the two expression operands instead of the curly on the next
line. Still better would be to suggest a ';', at least if the next token is a
'}'.

% cat t3.cc 
int foo() {
  return 42,
}

% gcc -fsyntax-only t3.cc
t3.cc: In function 'int foo()':
t3.cc:3: error: expected primary-expression before '}' token
t3.cc:3: error: expected ';' before '}' token

% clang -fsyntax-only t3.cc
t3.cc:3:1: error: expected expression
}
^
t3.cc:3:2: error: expected '}'
}
 ^
2 errors generated.

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