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Overview
Comment:Added impl link to 531
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SHA3-256: 32ab8357c90ec922a95b96c370ebb02ffa98ebc8ce54c9e2fa660078a64e24d7
User & Date: dkf 2019-04-05 21:00:58
Context
2019-04-07
15:45
CFV called by DKF check-in: 9917ae48d9 user: dkf tags: trunk
2019-04-05
21:00
Added impl link to 531 check-in: 32ab8357c9 user: dkf tags: trunk
2019-04-02
11:50
Fix impl link check-in: 57086d4aee user: dkf tags: trunk
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{"tip": {
	"536":{"url":"./tip/536.md","keywords":"Tk","created":"29-March-2019","post-history":"","state":"Draft","tk-branch":"mac_services","tcl-version":"8.6","vote":"","type":"Project","title":"# TIP 536: Improvements to Mac-specific IPC in Tk","author":["Kevin Walzer <[email protected]>"],"is-jest":false},
	"535":{"url":"./tip/535.md","keywords":"Tcl","created":"10-March-2019","post-history":"","state":"Final","tcl-branch":"scale-tick-format","tcl-version":"8.6","vote":"Done","type":"Project","title":"# TIP 535: Remove trailing zeroes in scale ticks","author":["Francois Vogel <[email protected]>"],"is-jest":false},
	"534":{"url":"./tip/534.md","keywords":"Tcl","created":"02-March-2019","post-history":"","state":"Draft","tcl-branch":"dkf-experimental-fast-number-hash","tcl-version":"8.7","vote":"Pending","type":"Project","title":"# TIP 534: Faster Hashing of Small Integers","author":["Donal K. Fellows <[email protected]>"],"is-jest":false},
	"533":{"url":"./tip/533.md","keywords":"Tk, menubutton","":"","[menu man page](https":"//www.tcl.tk/man/tcl/TkCmd/menu.htm).","state":"Final","type":"Project","tk-branch":"bug-70e531918e","author":["Marc Culler"],"three arguments":"two coordinates and an index.  That function uses the","[70e531918e](https":"//core.tcl-lang.org/tk/tktview/70e531918e6d99cbdd8b527386fec15872c64216).","created":"13-Jan-2019","by calling <b>":":tk::PostOverPoint</b> which, like the proposed extension, accepts","a method <b>[nsmenu popupmenupositioningitem":"atLocation:inView]</b> which draws the","title":"# TIP 533: Extension of the menu post command.","the [bug-70e531918e](https":"//core.tcl-lang.org/tk/timeline?r=bug-70e531918e)","post-history":"","vote":"Done","tcl-version":"8.6","is-jest":false},
	"532":{"url":"./tip/532.md","moreover the following issues have been solved":"","keywords":"Tk, bind, event, event loop","":"","[generic/tkbind.c](http":"//core.tcl.tk/tk/artifact/e41f45f7f6ac3447?ln=3287-3307).","this has been observed in applications [scid](http":"//scid.sourceforge.net), and","state":"Draft","branch [bug6e8afe516d-87](https":"//core.tcl-lang.org/tk/timeline?r=bug6e8afe516d-87)","type":"Project","tk-branch":"bug6e8afe516d","issue (1)":"Legacy implementation is computing the time difference of nth click with first click,","says (<code>man bind</code>)":"","author":["Gregor Cramer <[email protected]>"],"(same with applications [scid](http":"//scid.sourceforge.net), and","[bind-33.13](https":"//core.tcl-lang.org/tk/artifact/6377cb0d762b7261?ln=6550-6566).","5. legacy implementation cannot handle homogeneous equal sequences properly, see this script":"","branch [bug6e8afe516d](https":"//core.tcl-lang.org/tk/timeline?r=bug6e8afe516d)","2. immediately after startup of application [scidb](http":"//scidb.sourceforge.net)","[bug6e8afe516d](https":"//core.tcl-lang.org/tk/timeline?r=bug6e8afe516d)","created":"09-Jan-2019","manual (<code>man bind</code>) says":"","[bind-32.2](https":"//core.tcl-lang.org/tk/artifact/6377cb0d762b7261?ln=6123-6143)).","title":"# TIP 532: Re-implementation of event loop processing.","how to choose the most specific binding, has to be changed":"","4. see following code":"","can be expressed in a different way":"","[bind-32.4](https":"//core.tcl-lang.org/tk/artifact/6377cb0d762b7261?ln=6158-6171).","this problem occurs often in application [scidb](http":"//scidb.sourceforge.net),","post-history":"","[bind-32.6](https":"//core.tcl-lang.org/tk/artifact/6377cb0d762b7261?ln=6172-6191).","vote":"Pending","tcl-version":"8.6 and 8.7","[severe bugs in binding (tkbind.c)](https":"//core.tcl-lang.org/tk/tktview/6e8afe516df85f6213f436ef7c2fab2ec2d11c76).","[scid vs pc](http":"//scidvspc.sourceforge.net).","the following problems, caused by event ring overflow, have been solved":"","is-jest":false},
	"531":{"url":"./tip/531.md","":"","keywords":"Tcl, stubs","created":"14-Dec-2018","post-history":"","state":"Draft","tcl-version":"8.7","vote":"Pending","type":"Project","title":"# TIP 531: Static Tcl Interpreter Creation Function","/usr/local/include/tcl8.6/tcldecls.h":"#define Tcl_CreateInterp \\","author":["Shannon Noe <[email protected]>"],"is-jest":false},
	"530":{"url":"./tip/530.md","tcl-ticket":"a09031e288","created":"13-Dec-2018","post-history":"","state":"Draft","tcl-version":"8.6, 8.7","vote":"Pending","type":"Project","title":"# TIP 530: Control over performance impact of TIP 280","author":["Leon Manukyan <[email protected]>"],"is-jest":false},
	"529":{"url":"./tip/529.md","keywords":"Tk, image","created":"07-Dec-2018","state":"Draft","tk-branch":"tip-529-image-metadata","tcl-version":"8.7","vote":"Pending","type":"Project","title":"# TIP 529: Add metadata dict property to tk photo image","author":["Harald Oehlmann <[email protected]>"],"is-jest":false},
	"528":{"url":"./tip/528.md","created":"05-Dec-2018","post-history":"","state":"Draft","tk-branch":"offsetof","tcl-version":"8.7","vote":"Pending","type":"Project","title":"# TIP 528: Deprecate Tk_Offset()","author":["Jan Nijtmans <[email protected]>"],"is-jest":false},
	"527":{"url":"./tip/527.md","state":"Final","type":"Project","author":["Sergey G. Brester <[email protected]>"],"votes-against":"None","vote-results":"5/0 accepted","votes-for":"KBK, DKF, AK, SL, FV","created":"26-Nov-2018","title":"# TIP 527: New measurement facilities in TCL: New command timerate.","post-history":"","vote":"Done","tcl-version":"8.7","tcl-branch":"sebres-8-6-timerate","discussions-to":"news:comp.lang.tcl","is-jest":false},
	"526":{"url":"./tip/526.md","created":"08-Nov-2018","post-history":"","state":"Draft","tcl-version":"9.0","vote":"Pending","type":"Project","title":"# TIP 526: Make [expr] Only Accept One Argument","author":["Donal K. Fellows <donal.k.fellows[email protected]>"],"is-jest":false},
	"525":{"url":"./tip/525.md","keywords":"Tcl, testing, continuous integration","state":"Final","type":"Project","author":["Donal K. Fellows <[email protected]>"],"vote-results":"8/0/0 accepted","votes-for":"KBK, SL, AF, DGP, FV, DKF, AK, JN","votes-against":"none","created":"24-Oct-2018","title":"# TIP 525: Make Tcltest Report Overall Success in a Machine-Readable Way","post-history":"","vote":"Done","tcl-version":"8.5","votes-present":"none","is-jest":false},
	"524":{"url":"./tip/524.md","keywords":"Tcl, object orientation, customization","state":"Final","vote-summary":"Accepted 2/0/4","type":"Project","author":["Donal K. Fellows <[email protected]>"],"votes-against":"none","votes-for":"DKF, JN","created":"23-Oct-2018","title":"# TIP 524: Custom Definition Dialects for TclOO","post-history":"","vote":"Done","tcl-version":"8.7","tcl-branch":"tip-524","votes-present":"BG, KBK, FV, SL","is-jest":false},
................................................................................
	"4":{"url":"./tip/4.md","created":"26-Oct-2000","post-history":"","state":"Draft","vote":"Pending","type":"Informative","title":"# TIP 4: Tcl Release and Distribution Philosophy","discussions-to":"news:comp.lang.tcl","author":["Brent Welch <[email protected]>","Donal K. Fellows <[email protected]>","Larry W. Virden <[email protected]>","Larry W. Virden <[email protected]>"],"is-jest":false},
	"3":{"url":"./tip/3.md","created":"14-Sep-2000","post-history":"","state":"Accepted","vote":"Done","type":"Process","title":"# TIP 3: TIP Format","author":["Andreas Kupries <[email protected]>","Donal K. Fellows <[email protected]>"],"is-jest":false},
	"2":{"url":"./tip/2.md","created":"12-Sep-2000","post-history":"","state":"Draft","vote":"Pending","type":"Process","title":"# TIP 2: TIP Guidelines","author":["Andreas Kupries <[email protected]>","Donal K. Fellows <[email protected]>","Don Porter <[email protected]>","Mo DeJong <[email protected]>","Larry W. Virden <[email protected]>","Kevin Kenny <[email protected]>"],"is-jest":false},
	"1":{"url":"./tip/1.md","created":"14-Sep-2000","post-history":"","state":"Active","vote":"No voting","type":"Informational","title":"# TIP 1: TIP Index","author":["TIP Editor <[email protected]>"],"is-jest":false},
	"0":{"url":"./tip/0.md","created":"11-Dec-2000","post-history":"","state":"Final","vote":"Done","type":"Process","title":"# TIP 0: Tcl Core Team Basic Rules","author":["John Ousterhout <[email protected]>"],"is-jest":false},
	"@min": 0,
	"@max": 536
}, "@timestamp": 1554205814}





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{"tip": {
	"536":{"url":"./tip/536.md","keywords":"Tk","created":"29-March-2019","post-history":"","state":"Draft","tk-branch":"mac_services","tcl-version":"8.6","vote":"","type":"Project","title":"# TIP 536: Improvements to Mac-specific IPC in Tk","author":["Kevin Walzer <[email protected]>"],"is-jest":false},
	"535":{"url":"./tip/535.md","keywords":"Tcl","created":"10-March-2019","post-history":"","state":"Final","tcl-branch":"scale-tick-format","tcl-version":"8.6","vote":"Done","type":"Project","title":"# TIP 535: Remove trailing zeroes in scale ticks","author":["Francois Vogel <[email protected]>"],"is-jest":false},
	"534":{"url":"./tip/534.md","keywords":"Tcl","created":"02-March-2019","post-history":"","state":"Draft","tcl-branch":"dkf-experimental-fast-number-hash","tcl-version":"8.7","vote":"Pending","type":"Project","title":"# TIP 534: Faster Hashing of Small Integers","author":["Donal K. Fellows <[email protected]>"],"is-jest":false},
	"533":{"url":"./tip/533.md","keywords":"Tk, menubutton","":"","[menu man page](https":"//www.tcl.tk/man/tcl/TkCmd/menu.htm).","state":"Final","type":"Project","tk-branch":"bug-70e531918e","author":["Marc Culler"],"three arguments":"two coordinates and an index.  That function uses the","[70e531918e](https":"//core.tcl-lang.org/tk/tktview/70e531918e6d99cbdd8b527386fec15872c64216).","created":"13-Jan-2019","by calling <b>":":tk::PostOverPoint</b> which, like the proposed extension, accepts","a method <b>[nsmenu popupmenupositioningitem":"atLocation:inView]</b> which draws the","title":"# TIP 533: Extension of the menu post command.","the [bug-70e531918e](https":"//core.tcl-lang.org/tk/timeline?r=bug-70e531918e)","post-history":"","vote":"Done","tcl-version":"8.6","is-jest":false},
	"532":{"url":"./tip/532.md","moreover the following issues have been solved":"","keywords":"Tk, bind, event, event loop","":"","[generic/tkbind.c](http":"//core.tcl.tk/tk/artifact/e41f45f7f6ac3447?ln=3287-3307).","this has been observed in applications [scid](http":"//scid.sourceforge.net), and","state":"Draft","branch [bug6e8afe516d-87](https":"//core.tcl-lang.org/tk/timeline?r=bug6e8afe516d-87)","type":"Project","tk-branch":"bug6e8afe516d","issue (1)":"Legacy implementation is computing the time difference of nth click with first click,","says (<code>man bind</code>)":"","author":["Gregor Cramer <[email protected]>"],"(same with applications [scid](http":"//scid.sourceforge.net), and","[bind-33.13](https":"//core.tcl-lang.org/tk/artifact/6377cb0d762b7261?ln=6550-6566).","5. legacy implementation cannot handle homogeneous equal sequences properly, see this script":"","branch [bug6e8afe516d](https":"//core.tcl-lang.org/tk/timeline?r=bug6e8afe516d)","2. immediately after startup of application [scidb](http":"//scidb.sourceforge.net)","[bug6e8afe516d](https":"//core.tcl-lang.org/tk/timeline?r=bug6e8afe516d)","created":"09-Jan-2019","manual (<code>man bind</code>) says":"","[bind-32.2](https":"//core.tcl-lang.org/tk/artifact/6377cb0d762b7261?ln=6123-6143)).","title":"# TIP 532: Re-implementation of event loop processing.","how to choose the most specific binding, has to be changed":"","4. see following code":"","can be expressed in a different way":"","[bind-32.4](https":"//core.tcl-lang.org/tk/artifact/6377cb0d762b7261?ln=6158-6171).","this problem occurs often in application [scidb](http":"//scidb.sourceforge.net),","post-history":"","[bind-32.6](https":"//core.tcl-lang.org/tk/artifact/6377cb0d762b7261?ln=6172-6191).","vote":"Pending","tcl-version":"8.6 and 8.7","[severe bugs in binding (tkbind.c)](https":"//core.tcl-lang.org/tk/tktview/6e8afe516df85f6213f436ef7c2fab2ec2d11c76).","[scid vs pc](http":"//scidvspc.sourceforge.net).","the following problems, caused by event ring overflow, have been solved":"","is-jest":false},
	"531":{"url":"./tip/531.md","keywords":"Tcl, stubs","":"","state":"Draft","type":"Project","author":["Shannon Noe <[email protected]>"],"created":"14-Dec-2018","title":"# TIP 531: Static Tcl Interpreter Creation Function","post-history":"","vote":"Pending","tcl-version":"8.7","tcl-branch":"tip-531","/usr/local/include/tcl8.6/tcldecls.h":"#define Tcl_CreateInterp \\","is-jest":false},
	"530":{"url":"./tip/530.md","tcl-ticket":"a09031e288","created":"13-Dec-2018","post-history":"","state":"Draft","tcl-version":"8.6, 8.7","vote":"Pending","type":"Project","title":"# TIP 530: Control over performance impact of TIP 280","author":["Leon Manukyan <[email protected]>"],"is-jest":false},
	"529":{"url":"./tip/529.md","keywords":"Tk, image","created":"07-Dec-2018","state":"Draft","tk-branch":"tip-529-image-metadata","tcl-version":"8.7","vote":"Pending","type":"Project","title":"# TIP 529: Add metadata dict property to tk photo image","author":["Harald Oehlmann <[email protected]forge.net>"],"is-jest":false},
	"528":{"url":"./tip/528.md","created":"05-Dec-2018","post-history":"","state":"Draft","tk-branch":"offsetof","tcl-version":"8.7","vote":"Pending","type":"Project","title":"# TIP 528: Deprecate Tk_Offset()","author":["Jan Nijtmans <[email protected]>"],"is-jest":false},
	"527":{"url":"./tip/527.md","state":"Final","type":"Project","author":["Sergey G. Brester <[email protected]>"],"votes-against":"None","vote-results":"5/0 accepted","votes-for":"KBK, DKF, AK, SL, FV","created":"26-Nov-2018","title":"# TIP 527: New measurement facilities in TCL: New command timerate.","post-history":"","vote":"Done","tcl-version":"8.7","tcl-branch":"sebres-8-6-timerate","discussions-to":"news:comp.lang.tcl","is-jest":false},
	"526":{"url":"./tip/526.md","created":"08-Nov-2018","post-history":"","state":"Draft","tcl-version":"9.0","vote":"Pending","type":"Project","title":"# TIP 526: Make [expr] Only Accept One Argument","author":["Donal K. Fellows <[email protected]>"],"is-jest":false},
	"525":{"url":"./tip/525.md","keywords":"Tcl, testing, continuous integration","state":"Final","type":"Project","author":["Donal K. Fellows <[email protected]>"],"vote-results":"8/0/0 accepted","votes-for":"KBK, SL, AF, DGP, FV, DKF, AK, JN","votes-against":"none","created":"24-Oct-2018","title":"# TIP 525: Make Tcltest Report Overall Success in a Machine-Readable Way","post-history":"","vote":"Done","tcl-version":"8.5","votes-present":"none","is-jest":false},
	"524":{"url":"./tip/524.md","keywords":"Tcl, object orientation, customization","state":"Final","vote-summary":"Accepted 2/0/4","type":"Project","author":["Donal K. Fellows <[email protected]>"],"votes-against":"none","votes-for":"DKF, JN","created":"23-Oct-2018","title":"# TIP 524: Custom Definition Dialects for TclOO","post-history":"","vote":"Done","tcl-version":"8.7","tcl-branch":"tip-524","votes-present":"BG, KBK, FV, SL","is-jest":false},
................................................................................
	"4":{"url":"./tip/4.md","created":"26-Oct-2000","post-history":"","state":"Draft","vote":"Pending","type":"Informative","title":"# TIP 4: Tcl Release and Distribution Philosophy","discussions-to":"news:comp.lang.tcl","author":["Brent Welch <[email protected]>","Donal K. Fellows <[email protected]>","Larry W. Virden <[email protected]>","Larry W. Virden <[email protected]>"],"is-jest":false},
	"3":{"url":"./tip/3.md","created":"14-Sep-2000","post-history":"","state":"Accepted","vote":"Done","type":"Process","title":"# TIP 3: TIP Format","author":["Andreas Kupries <[email protected]>","Donal K. Fellows <[email protected]>"],"is-jest":false},
	"2":{"url":"./tip/2.md","created":"12-Sep-2000","post-history":"","state":"Draft","vote":"Pending","type":"Process","title":"# TIP 2: TIP Guidelines","author":["Andreas Kupries <[email protected]>","Donal K. Fellows <[email protected]>","Don Porter <[email protected]>","Mo DeJong <[email protected]>","Larry W. Virden <[email protected]>","Kevin Kenny <[email protected]>"],"is-jest":false},
	"1":{"url":"./tip/1.md","created":"14-Sep-2000","post-history":"","state":"Active","vote":"No voting","type":"Informational","title":"# TIP 1: TIP Index","author":["TIP Editor <[email protected]>"],"is-jest":false},
	"0":{"url":"./tip/0.md","created":"11-Dec-2000","post-history":"","state":"Final","vote":"Done","type":"Process","title":"# TIP 0: Tcl Core Team Basic Rules","author":["John Ousterhout <[email protected]>"],"is-jest":false},
	"@min": 0,
	"@max": 536
}, "@timestamp": 1554498037}

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</tr>
<tr class='project projectdraft projectdraft87 project87'>
<td valign='top'><a href='./tip/531.md'>531</a></td>
<td valign='top'>Project</td>
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<td valign='top'># TIP 531: Static Tcl Interpreter Creation Function</td>
<td></td>
</tr>
<tr class='project projectdraft projectdraft86 project86'>
<td valign='top'><a href='./tip/530.md'>530</a></td>
<td valign='top'>Project</td>
<td valign='top'>8.6, 8.7</td>
<td valign='top'>Draft</td>
<td valign='top'># TIP 530: Control over performance impact of TIP 280</td>






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<td valign='top'># TIP 531: Static Tcl Interpreter Creation Function</td>
<td valign='top'><a href='/tcl/timeline?r=tip-531'>Link</a></td>
</tr>
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<td valign='top'><a href='./tip/530.md'>530</a></td>
<td valign='top'>Project</td>
<td valign='top'>8.6, 8.7</td>
<td valign='top'>Draft</td>
<td valign='top'># TIP 530: Control over performance impact of TIP 280</td>

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	State:          Draft
	Type:           Project
	Vote:           Pending
	Created:        14-Dec-2018
	Post-History:  
	Keywords:       Tcl, stubs
	Tcl-Version:    8.7

----

# Abstract

This TIP adds a helper function to the tclstubs library for creating an interpreter.
The `Tcl_CreateInterp` function is dependent on the order defining `USE_TCL_STUBS` and inclusion of `tcl.h`.
When users get this wrong the error is a null pointer exception (NPE) on the stubs table.






>







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	State:          Draft
	Type:           Project
	Vote:           Pending
	Created:        14-Dec-2018
	Post-History:  
	Keywords:       Tcl, stubs
	Tcl-Version:    8.7
	Tcl-Branch:     tip-531
----

# Abstract

This TIP adds a helper function to the tclstubs library for creating an interpreter.
The `Tcl_CreateInterp` function is dependent on the order defining `USE_TCL_STUBS` and inclusion of `tcl.h`.
When users get this wrong the error is a null pointer exception (NPE) on the stubs table.