Fixes are available
April 2012 PTF for XL C for AIX, V11.1
April 2012 PTF for XL C/C++ for AIX, V11.1
July 2012 PTF for XL C/C++ for AIX, V11.1
October 2012 PTF for XL C/C++ for AIX, V11.1
October 2012 PTF for XL C for AIX, V11.1
February 2013 PTF for XL C for AIX, V11.1
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 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 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 for AIX Fix Pack 17 (February 2014 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 for AIX Fix Pack 21 (April 2015 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 for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 23 (March 2016 PTF) for 11.1
XL C for AIX Fix Pack 24 (September 2016 PTF) for 11.1
XL C/C++ for AIX Fix Pack 24 (September 2016 PTF) for 11.1
July 2012 PTF for XL C for AIX, V11.1
XL C for AIX Fix Pack 16 (November 2013 PTF) for 11.1
XL C for AIX Fix Pack 18 (May 2014 PTF) for 11.1
XL C for AIX Fix Pack 19 (August 2014 PTF) for 11.1
XL C for AIX Fix Pack 20 (November 2014 PTF) for 11.1
XL C for AIX Fix Pack 22 (September 2015 PTF) for 11.1
APAR status
Closed as program error.
Error description
When compiling with the cc compiler, the resulting exe produces an incorrect output. ===== COMPILE COMMAND: cc test.c ===== TESTCASE: $cat test.c #include <stdio.h> #include <stdbool.h> #ifdef THIS_WORKS # define cBOOL(cbool) ((cbool) ? true : false) #else # define cBOOL(cbool) ((bool)!!(cbool)) #endif #define toUPPER(c) (cBOOL((c >= 'a' && c <= 'z')) ? (c - 32) : (c)) int main(int argc, char **argv) { while (*++argv) { char c = **argv; char u = toUPPER(c); printf("c=%d u=%d\n", c, u); } return 0; } $ ===== ACTUAL OUTPUT: $cc test.c $./a.out $ ./a.out v V c=118 u=86 c=86 u=54 $ ===== EXPECTED OUTPUT: $cc test.c $./a.out v V c=118 u=86 c=86 u=86 $
Local fix
It will produce the expected output if you compiled the test case as a C++ program.
Problem summary
USERS AFFECTED: Users who cast a non-constant expression to _Bool may be affected by this issue. PROBLEM DESCRIPTION: Casting a non-constant expression to _Bool returns incorrect results.
Problem conclusion
When the expression being casted to _Bool is non-contant, the compiler should not just pick 0 or 1 but propagate the non-contant value. This has been corrected.
Temporary fix
Comments
APAR Information
APAR number
IV18500
Reported component name
XL C FOR AIX
Reported component ID
5724X1200
Reported release
B10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2012-03-29
Closed date
2012-03-29
Last modified date
2012-04-24
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 FOR AIX
Fixed component ID
5724X1200
Applicable component levels
Document Information
Modified date:
24 April 2012