Fixes are available
February 2013 PTF for XL C/C++ for AIX, V11.1
XL C/C++ for AIX Fix Pack 14 (May 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 15 (August 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 16 (November 2013 PTF) for 11.1
XL C/C++ for AIX Fix Pack 17 (February 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 18 (May 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 19 (August 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 20 (November 2014 PTF) for 11.1
XL C/C++ for AIX Fix Pack 21 (April 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 22 (September 2015 PTF) for 11.1
XL C/C++ for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 24 (September 2016 PTF) for 11.1
APAR status
Closed as program error.
Error description
When compiling the test case below, the compiler issues an incorrect error message. The diagnostic refers to this line: typedef char staticassert_type[sizeof(Type) == 2 ? 2 : 0]; // But this is NOT !! indicating that sizeof(Type) is not 2. The line just above it /// char staticassert_var[sizeof(Type) == 2 ? 2 : 0]; is accepted, when uncommented. If you uncommend line 4, and comment line 5 instead, the program compiles and links. When you run it, the value it returns is 2 (sizeof(Resolver<int>::Type)). ===== COMPILE COMMAND: xlC test.cpp ===== TESTCASE: $ cat test.cpp template <typename T> struct Resolver { typedef struct { char a[2]; } Type; // char staticassert_var[sizeof(Type) == 2 ? 2 : 0]; // This is accepted typedef char staticassert_type[sizeof(Type) == 2 ? 2 : 0]; // But this is NOT !!! }; int main() { return sizeof(Resolver<int>::Type); } $ ===== ACTUAL OUTPUT: $ xlC test.cpp "test.cpp", line 5.54: 1540-0135 (S) The array bound cannot be zero. $ ===== EXPECTED OUTPUT: Clean compile
Local fix
n/a
Problem summary
USERS AFFECTED: The problem can be seen when a sizeof expression is used to compute an array bound inside a template definition. PROBLEM DESCRIPTION: The compiler was incorrectly evaluating a sizeof expression inside a template definition and reporting an error.
Problem conclusion
The compiler has been fixed to resolve the above issue.
Temporary fix
Comments
APAR Information
APAR number
IV33977
Reported component name
XL C/C++ AIX
Reported component ID
5724X1300
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-12-28
Closed date
2013-02-07
Last modified date
2013-02-08
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
XL C/C++ AIX
Fixed component ID
5724X1300
Applicable component levels
RB10 PSY U858036
UP C
Document Information
Modified date:
08 February 2013