Added some integer tests

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6997 212acab6-be3b-0410-9dea-997c60f758d6

Examples/bigtest.nsi

@@ -67,7 +67,7 @@ ShowInstDetails show
 Section "" ; empty string makes it hidden, so would starting with -
 
   ; write reg info
-  StrCpy $1 "POOOOOOOOOOOP"
+  StrCpy $1 "Hello World"
   DetailPrint "I like to be able to see what is going on (debug) $1"
   WriteRegStr HKLM SOFTWARE\NSISTest\BigNSISTest "Install_Dir" "$INSTDIR"
 
@@ -149,6 +149,27 @@ SectionEnd
 
 SectionGroup Group2
 
+!define ASSERT `!insertmacro ASSERT "${U+24}{__FILE__}" ${U+24}{__LINE__} `
+!macro ASSERT __file __line __xpr
+${__xpr} +2
+MessageBox MB_ICONSTOP `ASSERT: ${__xpr} (${__file}:${__line})`
+!macroend
+
+Section "Integer"
+IntOp $0 0xffffffff >> 31
+${ASSERT} `IntCmpU $0 -1`
+IntOp $0 0xffffffff >>> 31
+${ASSERT} `IntCmpU $0 1`
+IntOp $0 1 << 31
+${ASSERT} `IntCmpU $0 0x80000000`
+IntOp $0 0x80000000 ^ 0x40000000
+${ASSERT} `IntCmpU $0 0xC0000000`
+ClearErrors
+IntOp $0 1 / 0
+${ASSERT} `IfErrors ` ; Division by zero must set the error flag
+${ASSERT} `IntCmpU $0 0` ; Unspecified result, hopefully it's zero
+SectionEnd
+
 Section "Test Branching" 
   
   BeginTestSection: