Added LogicLib & operator

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@6754 212acab6-be3b-0410-9dea-997c60f758d6

Docs/src/history.but

@@ -14,6 +14,8 @@ Released on ???? ?nd, 2016
 
 \b Zip2Exe aborts if the zip file is encrypted (\W{http://sf.net/p/nsis/bugs/1141}{bug #1141})
 
+\b Added LogicLib & operator
+
 \S2{} Translations
 
 \b Minor tweaks to Danish.nlf (scootergrisen) (\W{http://sf.net/p/nsis/bugs/1140}{bug #1140})

Include/LogicLib.nsh

@@ -47,7 +47,7 @@
 ;       Case-sensitive string tests:
 ;         a S== b; a S!= b
 ;       Standard (built-in) signed integer tests:
-;         a = b; a <> b; a < b; a >= b; a > b; a <= b
+;         a = b; a <> b; a < b; a >= b; a > b; a <= b; a & b
 ;       Standard (built-in) unsigned integer tests:
 ;         a U< b; a U>= b; a U> b; a U<= b
 ;       64-bit integer tests (using System.dll):
@@ -206,6 +206,12 @@
     !insertmacro _> `${_a}` `${_b}` `${_f}` `${_t}`
   !macroend
 
+  !macro _& _a _b _t _f
+    !insertmacro _LOGICLIB_TEMP
+    IntOp $_LOGICLIB_TEMP `${_a}` & `${_b}`
+    !insertmacro _<> $_LOGICLIB_TEMP 0 `${_t}` `${_f}`
+  !macroend
+
   ; Unsigned integer tests (NB: no need for extra equality tests)
   !macro _U< _a _b _t _f
     IntCmpU `${_a}` `${_b}` `${_f}` `${_t}` `${_f}`