A fix is available
APAR status
Closed as program error.
Error description
NUMVAL and TEST-NUMVAL do not diagnose input with bad format as incorrect input and produce faulty results
Local fix
N/A
Problem summary
**************************************************************** * USERS AFFECTED: Users of Enterprise COBOL V5 and later * * releases compiling and running programs * * that use NUMVAL and TEST-NUMVAL intrinsic * * functions. * **************************************************************** * PROBLEM DESCRIPTION: NUMVAL and TEST-NUMVAL intrinsic * * functions produce faulty results when * * inputs are incorrect. NUMVAL also * * misses a diagnostic message. * **************************************************************** * RECOMMENDATION: Apply the provided PTF. * **************************************************************** During NUMVAL and TEST-NUMVAL intrinsic function processing, the COBOL runtime fails to validate and diagnose invalid input styles as incorrect, and returns faulty values without indicating about the error. COB0501T/K COB0502T/K COB0601T/K COB0602T/K
Problem conclusion
The COBOL Runtime is corrected to detect invalid input to NUMVAL and TEST-NUMVAL intrinsic functions. Diagnostic message is issued by NUMVAL, and the appropriate non-zero return value is returned by TEST-NUMVAL. +-------------------------------------------------------------- + | Start of changes for: | | Enterprise COBOL for z/OS Language Reference, SC27-8713-01 | +-------------------------------------------------------------- Chapter 21. Intrinsic functions The following additions will be added to the end of NUMVAL, NUMVAL-C, NUMVAL-F, TEST-NUMVAL, TEST-NUMVAL-C and TEST-NUMVAL-F function descriptions: NUMVAL Usage note: Due to the different input string syntax of NUMVAL, NUMVAL-F, and NUMVAL-C, their diagnostic messages may vary slightly when diagnosing incorrect input formats. For example, NUMVAL('ABC ') and NUMVAL-F('ABC ') would result in diagnostic message indicating there is no digit found, while NUMVAL-C('ABC ') would result with a message indicating character 'A' is found to be an invalid character. In any case the meaning of the messages should be obvious. NUMVAL-C Usage note: see the usage note in the NUMVAL function NUMVAL-F Usage note: see the usage note in the NUMVAL function TEST-NUMVAL Usage note: Due to the slightly different input string syntax of TEST-NUMVAL, TEST-NUMVAL-F, and TEST-NUMVAL-C, their non-zero return values may vary when the content of argument-1 is not conforming to the specification of their associating NUMVAL, NUMVAL-F and NUMVAL-C input formats. These differences reflect the diagnostic behaviour of NUMVAL, NUMVAL-F and NUMVAL-C. For example, TEST-NUMVAL-C('ABC ') would return 1 because the character 'A' is found to be an invalid character by NUMVAL-C, while TEST-NUMVAL ('ABC ') and TEST-NUMVAL-F ('ABC ') would return 11 because no input digits is found by NUMVAL (and TEST-NUMVAL-F). The later condition falls under the (FUNCTION LENGTH (argument-1) + 1) rule of TEST-NUMVAL and TEST-NUMVAL-F. TEST-NUMVAL-C Usage note: see the usage note in the TEST-NUMVAL function TEST-NUMVAL-F Usage note: see the usage note in the TEST-NUMVAL function +-------------------------------------------------------------- | End of changes for: | | Enterprise COBOL for z/OS Language Reference, | SC27-8713-01 | +--------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
PH13070
Reported component name
LE ENT COBOL LI
Reported component ID
568819812
Reported release
7B0
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-06-07
Closed date
2019-06-12
Last modified date
2019-07-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI63602
Modules/Macros
IGZCEV4 IGZCMGEN IGZCMGUE IGZLLIBV IGZXAPI IGZXCDA IGZXD24 IGZXDMR IGZXLPIO IGZXLPKA IGZXLPKB IGZXLPKC IGZXLPKD IGZXLPKE IGZXLPKF IGZXLPKG IGZXPK2
Fix information
Fixed component name
LE ENT COBOL LI
Fixed component ID
568819812
Applicable component levels
R7B0 PSY UI63602
UP19/06/18 P F906
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
[{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SSCVR7X","label":"Runtime"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
14 December 2020