Use {} braces in more "expr" expressions.

1 files changed, 18 insertions, 18 deletions

diff --git a/tests/io.test b/tests/io.test
index 8bf3303..a86527b 100644
--- a/tests/io.test
+++ b/tests/io.test
@@ -1943,11 +1943,11 @@ test io-17.1 {GetChannelTable, DeleteChannelTable on std handles} {testchannel}
     eof stdin
     interp create x
     set l ""
-    lappend l [expr [testchannel refcount stdin] - $l1]
+    lappend l [expr {[testchannel refcount stdin] - $l1}]
     x eval {eof stdin}
-    lappend l [expr [testchannel refcount stdin] - $l1]
+    lappend l [expr {[testchannel refcount stdin] - $l1}]
     interp delete x
-    lappend l [expr [testchannel refcount stdin] - $l1]
+    lappend l [expr {[testchannel refcount stdin] - $l1}]
     set l
 } {0 1 0}
 test io-17.2 {GetChannelTable, DeleteChannelTable on std handles} {testchannel} {
@@ -1955,11 +1955,11 @@ test io-17.2 {GetChannelTable, DeleteChannelTable on std handles} {testchannel}
     eof stdin
     interp create x
     set l ""
-    lappend l [expr [testchannel refcount stdout] - $l1]
+    lappend l [expr {[testchannel refcount stdout] - $l1}]
     x eval {eof stdout}
-    lappend l [expr [testchannel refcount stdout] - $l1]
+    lappend l [expr {[testchannel refcount stdout] - $l1}]
     interp delete x
-    lappend l [expr [testchannel refcount stdout] - $l1]
+    lappend l [expr {[testchannel refcount stdout] - $l1}]
     set l
 } {0 1 0}
 test io-17.3 {GetChannelTable, DeleteChannelTable on std handles} {testchannel} {
@@ -1967,11 +1967,11 @@ test io-17.3 {GetChannelTable, DeleteChannelTable on std handles} {testchannel}
     eof stdin
     interp create x
     set l ""
-    lappend l [expr [testchannel refcount stderr] - $l1]
+    lappend l [expr {[testchannel refcount stderr] - $l1}]
     x eval {eof stderr}
-    lappend l [expr [testchannel refcount stderr] - $l1]
+    lappend l [expr {[testchannel refcount stderr] - $l1}]
     interp delete x
-    lappend l [expr [testchannel refcount stderr] - $l1]
+    lappend l [expr {[testchannel refcount stderr] - $l1}]
     set l
 } {0 1 0}
 
@@ -2161,7 +2161,7 @@ test io-26.1 {Tcl_GetChannelInstanceData} stdio {
     # Don't care what pid is (but must be a number), just want to exercise it.
 
     set f [open "|[list [interpreter] << exit]"]
-    expr [pid $f]
+    expr {[pid $f]}
     close $f
 } {}
 
@@ -3162,7 +3162,7 @@ test io-30.13 {Tcl_Write crlf on block boundary, Tcl_Read auto} {
     set c [read $f]
     close $f
     string length $c
-} [expr 700*15+1]
+} [expr {700*15+1}]
 test io-30.14 {Tcl_Write crlf on block boundary, Tcl_Read crlf} {
     file delete $path(test1)
     set f [open $path(test1) w]
@@ -3178,7 +3178,7 @@ test io-30.14 {Tcl_Write crlf on block boundary, Tcl_Read crlf} {
     set c [read $f]
     close $f
     string length $c
-} [expr 700*15+1]
+} [expr {700*15+1}]
 test io-30.15 {Tcl_Write mixed, Tcl_Read auto} {
     file delete $path(test1)
     set f [open $path(test1) w]
@@ -3996,7 +3996,7 @@ test io-31.31 {Tcl_Write crlf on block boundary, Tcl_Gets crlf} {
     }
     close $f
     string length $c
-} [expr 700*15+1]
+} [expr {700*15+1}]
 test io-31.32 {Tcl_Write crlf on block boundary, Tcl_Gets auto} {
     file delete $path(test1)
     set f [open $path(test1) w]
@@ -4015,7 +4015,7 @@ test io-31.32 {Tcl_Write crlf on block boundary, Tcl_Gets auto} {
     }
     close $f
     string length $c
-} [expr 700*15+1]
+} [expr {700*15+1}]
 
 # Test Tcl_Read and buffering.
 
@@ -5641,7 +5641,7 @@ test io-40.2 {POSIX open access modes: CREAT} {unix} {
     file delete $path(test3)
     set f [open $path(test3) {WRONLY CREAT} 0o600]
     file stat $path(test3) stats
-    set x [format "0o%o" [expr $stats(mode)&0o777]]
+    set x [format "0o%o" [expr {$stats(mode)&0o777}]]
     puts $f "line 1"
     close $f
     set f [open $path(test3) r]
@@ -5655,7 +5655,7 @@ test io-40.3 {POSIX open access modes: CREAT} {unix umask} {
     set f [open $path(test3) {WRONLY CREAT}]
     close $f
     file stat $path(test3) stats
-    format "0o%03o" [expr $stats(mode)&0o777]
+    format "0o%03o" [expr {$stats(mode)&0o777}]
 } [format "0o%03o" [expr {0o666 & ~ $umaskValue}]]
 test io-40.4 {POSIX open access modes: CREAT} {
     file delete $path(test3)
@@ -7093,7 +7093,7 @@ test io-52.6 {TclCopyChannel} {fcopy} {
     set f2 [open $path(test1) w]
     fconfigure $f1 -translation lf -blocking 0
     fconfigure $f2 -translation lf -blocking 0
-    set s0 [fcopy $f1 $f2 -size [expr [file size $thisScript] + 5]]
+    set s0 [fcopy $f1 $f2 -size [expr {[file size $thisScript] + 5}]]
     set result [list [fconfigure $f1 -blocking] [fconfigure $f2 -blocking]]
     close $f1
     close $f2
@@ -7589,7 +7589,7 @@ test io-53.7 {CopyData: Flooding fcopy from pipe} {stdio fcopy} {
     catch {close $in}
     close $out
     # -1=error 0=script error N=number of bytes
-    expr ($fcopyTestDone == 0) ? $fcopyTestCount : -1
+    expr {($fcopyTestDone == 0) ? $fcopyTestCount : -1}
 } {3450}
 test io-53.8 {CopyData: async callback and error handling, Bug 1932639} -setup {
     # copy progress callback. errors out intentionally