LI74348: INVALID ARRAY DATA

March 2009 Update for XL C/C++ for Linux, V10.1
October 2009 Update for XL C/C++ for Linux, V10.1
June 2011 Update for XL C/C++ for Linux, V10.1
XL C/C++ for Linux Fix Pack 8 (January 2014 Update) for 10.1
August 2010 Update for XL C/C++ for Linux, V10.1
January 2011 Update for XL C/C++ for Linux, V10.1
January 2012 Update for XL C/C++ for Linux, V10.1
July 2012 Update for XL C/C++ for Linux, V10.1

APAR status

• Closed as program error.

Error description

• ===== DESCRIPTION:
  When using an unsigned short array to store string characters,
  some values are stored incorrectly as a different value.
  
  ===== TESTCASE:
  #include <stdio.h>
  
  #define CHECK(a, b)                                      \
          if ( (long)(a) != (long)(b) )                    \
          { printf("Error %ld != %ld  (File: %s Line:      \
            %d)\n",(long)a,(long)b,__FILE__, __LINE__); }  \
          else {printf("Success %ld == %ld  (File: %s
            Line:%d)\n",(long)a, (long)b,__FILE__, __LINE__); }
  
  int main()
  {
          const unsigned short *s0 = u"\n\t\a\100XYZ";
  
          CHECK ( s0[0], 0xa );
          CHECK ( s0[1], 0x9 );
          CHECK ( s0[2], 0x7 );
          CHECK ( s0[3], 64 );    //a
          CHECK ( s0[4], 'X' );
  }
  
  ===== ACTUAL OUTPUT:
  Success 10 == 10  (File: TestCase.cpp Line:12)
  Success 9 == 9  (File: TestCase.cpp Line:13)
  Success 7 == 7  (File: TestCase.cpp Line:14)
  Error 16384 != 64  (File: TestCase.cpp Line: 15)
  Error 22528 != 88  (File: TestCase.cpp Line: 16)
  
  ===== EXPECTED OUTPUT:
  Success 10 == 10  (File: TestCase.cpp Line:12)
  Success 9 == 9  (File: TestCase.cpp Line:13)
  Success 7 == 7  (File: TestCase.cpp Line:14)
  Success 64 == 64  (File: TestCase.cpp Line: 15)
  Success 88 == 88  (File: TestCase.cpp Line: 16)
  

Local fix

• N/A
  

Problem summary

• Programmers who use hex or octal escape
  sequences in character or string literals.
  
  In certain instances, the generated code is incorrect.
  A complete (and detailed) list, provided above, is to be
  published in a Technote.
  

Problem conclusion

• We fixed all instances of incorrect code generation
  

Temporary fix

Comments

APAR Information

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

  IZ39039

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

  LI74416

Fix information

• Fixed component name

  XL C/C++ SLES10

• Fixed component ID

  5724U8300

Applicable component levels

• RA10 PSN IZ39039

     UP06/09/13