Do not try to read data from already empty TBuffer (#204)

linev · linev · commit d4bbde0ca939 · 2020-11-25T11:24:23.000+01:00
diff --git a/changes.md b/changes.md
@@ -3,6 +3,7 @@
 ## Changes in 5.9.x
 1. Fix zooming in color palette
 2. Fix interactive update of TGraph painting on time scale
+3. Fix I/O error in reading std::map (#204)
 
 
 ## Changes in 5.9.0
diff --git a/scripts/JSRootIOEvolution.js b/scripts/JSRootIOEvolution.js
@@ -3013,7 +3013,7 @@
       }
 
       var i, n = buf.ntoi4(), res = new Array(n);
-      if (this.member_wise) {
+      if (this.member_wise && (buf.remain() >= 6)) {
          if (buf.ntoi2() == JSROOT.IO.kStreamedMemberWise)
             buf.shift(4);
          else

Original file line number	Diff line number	Diff line change
`@@ -3013,7 +3013,7 @@`
`3013`	`3013`	`}`
`3014`	`3014`
`3015`	`3015`	`var i, n = buf.ntoi4(), res = new Array(n);`
`3016`		`- if (this.member_wise) {`
	`3016`	`+ if (this.member_wise && (buf.remain() >= 6)) {`
`3017`	`3017`	`if (buf.ntoi2() == JSROOT.IO.kStreamedMemberWise)`
`3018`	`3018`	`buf.shift(4);`
`3019`	`3019`	`else`