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Diffstat (limited to 'Build/source/texk/web2c/xetexdir/xetex.web')
-rw-r--r--Build/source/texk/web2c/xetexdir/xetex.web3
1 files changed, 3 insertions, 0 deletions
diff --git a/Build/source/texk/web2c/xetexdir/xetex.web b/Build/source/texk/web2c/xetexdir/xetex.web
index 04e00da0152..8aa90220eb4 100644
--- a/Build/source/texk/web2c/xetexdir/xetex.web
+++ b/Build/source/texk/web2c/xetexdir/xetex.web
@@ -32966,7 +32966,10 @@ var a,@!b:boolean; {saved values of |arith_error|}
@!p:pointer; {top of expression stack}
@!q:pointer; {for stack manipulations}
begin l:=cur_val_level; a:=arith_error; b:=false; p:=null;
+incr(expand_depth_count);
+if expand_depth_count>=expand_depth then overflow("expansion depth",expand_depth);
@<Scan and evaluate an expression |e| of type |l|@>;
+decr(expand_depth_count);
if b then
begin print_err("Arithmetic overflow");
@.Arithmetic overflow@>