IV75526: __BCOPY() FUNCTION DEFINITION IN BUILTINS.H MISMATCH WITH COMPILER REFERENCE

XL C/C++ for AIX Fix Pack 4 (July 2015 PTF) for 13.1
XL C for AIX Fix Pack 5 (November 2015 Update) for 13.1
XL C/C++ for AIX Fix Pack 5 (November 2015 PTF) for 13.1
XL C/C++ for AIX Fix Pack 6 (February 2016 PTF) for 13.1
XL C for AIX Fix Pack 6 (February 2016 Update) for 13.1
XL C for AIX Fix Pack 7 (May 2016 Update) for 13.1
XL C/C++ for AIX Fix Pack 7 (May 2016 PTF) for 13.1
XL C for AIX Fix Pack 8 (August 2016 Update) for 13.1
XL C/C++ for AIX Fix Pack 8 (August 2016 PTF) for 13.1
XL C for AIX Fix Pack 9 (June 2017 Update) for 13.1
XL C/C++ for AIX Fix Pack 9 (June 2017 PTF) for 13.1
XL C for AIX Fix Pack 10 (February 2018 Update) for 13.1
XL C/C++ for AIX Fix Pack 10 (February 2018 PTF) for 13.1
XL C for AIX Fix Pack 4 (July 2015 PTF) for 13.1
XL C/C++ for AIX Fix Pack 11 (November 2018 PTF) for 13.1
XL C for AIX Fix Pack 11 (November 2018) for 13.1

APAR status

• Closed as program error.

Error description

• In the compiler reference for xlC __bcopy is defined as
  
  void __bcopy(const void* src, void* dest, size_t n);
  
  However the following errors are observed:
  
  : 1540-0256 (S) A parameter of type "char *" cannot be
  initialized with an expression of type "short *".
  : 1540-1205 (I) The error occurred while converting to parameter
  1 of "__bcopy(char *, char *, int)".
  
  which is due to that in /usr/vacpp/include/builtins.h __bcopy()
  is defined as
  
  __builtinDecl void __bcopy(char *, char *, int);
  

Local fix

• N/A
  

Problem summary

• USERS AFFECTED:
  Users of the built-in function __bcopy are affected by this
  issue.
  
  PROBLEM DESCRIPTION:
  Declaration of built-in function __bcopy differs from the
  documentation.
  The documentation states the parameter types to be void*, void*
  and size_t, while it is actually declared to take char*, char*,
  and int.
  This results in a severe error for valid (according to the
  documentation) calls to __copy with non char pointer argument
  types.
  

Problem conclusion

• The declaration of __bcopy has been updated in the C and C++
  front ends to match with the documentation.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

  IV71285

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  XL C FOR AIX

• Fixed component ID

  5725C7100

Applicable component levels