Check for divide by zero in Calc function SLN.

Plus use correct prefixes for variable names.

Change-Id: Ia60117bec22eb305cb351a2e5fa0e757b4897139
Reviewed-on: https://gerrit.libreoffice.org/34872
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Eike Rathke <erack@redhat.com>

2 files changed, 25 insertions, 8 deletions

diff --git a/sc/qa/unit/data/functions/financial/fods/sln.fods b/sc/qa/unit/data/functions/financial/fods/sln.fods
index 88bad0ec6cb1..05a85c3f9b80 100644
--- a/sc/qa/unit/data/functions/financial/fods/sln.fods
+++ b/sc/qa/unit/data/functions/financial/fods/sln.fods
@@ -2526,10 +2526,22 @@
      <table:table-cell table:number-columns-repeated="9"/>
     </table:table-row>
     <table:table-row table:style-name="ro6">
-     <table:table-cell table:number-columns-repeated="2"/>
-     <table:table-cell table:style-name="ce23"/>
-     <table:table-cell table:style-name="ce26"/>
-     <table:table-cell table:number-columns-repeated="6"/>
+     <table:table-cell table:formula="of:=SLN(100;10;0)" office:value-type="string" office:string-value="" calcext:value-type="error">
+      <text:p>Err:502</text:p>
+     </table:table-cell>
+     <table:table-cell table:formula="of:#ERR502!" office:value-type="string" office:string-value="" calcext:value-type="error">
+      <text:p>Err:502</text:p>
+     </table:table-cell>
+     <table:table-cell table:style-name="ce71" table:formula="of:=ORG.OPENOFFICE.ERRORTYPE([.A12])=502" office:value-type="boolean" office:boolean-value="true" calcext:value-type="boolean">
+      <text:p>TRUE</text:p>
+     </table:table-cell>
+     <table:table-cell table:style-name="ce26" table:formula="of:=FORMULA([.A12])" office:value-type="string" office:string-value="=SLN(100,10,0)" calcext:value-type="string">
+      <text:p>=SLN(100,10,0)</text:p>
+     </table:table-cell>
+     <table:table-cell office:value-type="string" calcext:value-type="string">
+      <text:p>prevent #div/0! Error</text:p>
+     </table:table-cell>
+     <table:table-cell table:number-columns-repeated="5"/>
      <table:table-cell table:style-name="ce38"/>
      <table:table-cell table:number-columns-repeated="9"/>
     </table:table-row>
diff --git a/sc/source/core/tool/interpr2.cxx b/sc/source/core/tool/interpr2.cxx
index a33aa336917c..a5dae57722fe 100644
--- a/sc/source/core/tool/interpr2.cxx
+++ b/sc/source/core/tool/interpr2.cxx
@@ -1895,10 +1895,15 @@ void ScInterpreter::ScSLN()
     nFuncFmtType = css::util::NumberFormat::CURRENCY;
     if ( MustHaveParamCount( GetByte(), 3 ) )
     {
-        double nTimeLength = GetDouble();
-        double nRest = GetDouble();
-        double nValue = GetDouble();
-        PushDouble((nValue - nRest) / nTimeLength);
+        double fTimeLength = GetDouble();
+        if ( fTimeLength == 0.0 )
+            PushIllegalArgument();
+        else
+        {
+            double fRest = GetDouble();
+            double fValue = GetDouble();
+            PushDouble((fValue - fRest) / fTimeLength);
+        }
     }
 }