Tcl Source Code: View Ticket

Ticket UUID:	a858d95f4bfddafb85b640c3dd0d96a543b53407
Title:	segmenting error of v8.7 [clock]
Type:	Bug	Version:	8.7
Submitter:	anonymous	Created on:	2024-05-07 14:37:14
Subsystem:	16. Commands A-H	Assigned To:	nobody
Priority:	5 Medium	Severity:	Important
Status:	Closed	Last Modified:	2024-05-07 21:39:48
Resolution:	Fixed	Closed By:	jan.nijtmans
		Closed on:	2024-05-07 21:39:48
Description:	This code snippet results in the segmenting error of Tcl v8.7: puts [clock format [clock seconds] -format noarr(%d)] The error doesn't occur before and after v8.7, thus possibly needs a scrupulous attention.
User Comments:	jan.nijtmans added on 2024-05-07 21:39:48: Confirming the fix. Many thanks to anonymous for the bug-report! Many thanks to Sergey for the fixing this so quickly! sebres added on 2024-05-07 19:10:46: Fixed in [c432a8b50b3de8bb] for 8.7. Additionally I'll try to rewrite both routines a bit (to avoid unneeded realloc) and then merge it to 9.0. jan.nijtmans added on 2024-05-07 16:52:08: That's here jan.nijtmans added on 2024-05-07 16:48:00: Stacktrace: 0 libsystem_platform.dylib 0x7ff815c8c350 _platform_memmove$VARIANT$Haswell + 496 1 tktest 0x102b3155d ClockFormat + 1645 (tclClockFmt.c:3503) 2 tktest 0x102b283a9 ClockFormatObjCmd + 249 (tclClock.c:3569) 3 tktest 0x102b13538 Dispatch + 120 (tclBasic.c:4608) 4 tktest 0x102b0f7c6 TclNRRunCallbacks + 118 (tclBasic.c:4624) jan.nijtmans added on 2024-05-07 16:42:35: I see exactly the same error in wish8.7 and wish9.0 anonymous added on 2024-05-07 15:35:49: Сергей, на тебя вся надежда:) I can not reproduce this error with wish9.0. So, another issue: why tclsh9.0 fails, while wish9.0 not. jan.nijtmans added on 2024-05-07 14:52:13: I can reproduce both in 8.7 and 9.0: $ tclsh9.0 % puts [clock format [clock seconds] -format noarr(%d)] Segmentation fault $ tclsh8.7 % puts [clock format [clock seconds] -format noarr(%d)] Segmentation fault Sergey, can you have a look, please?