Question

I’m having trouble figuring out what this if statement is doing. This is not my code so I am simply trying to understand what the Ternary operator is doing.

    if((model[STRIDE].isLogging == true ? model[STRIDE].value           : g_uiStride)   == g_uiStride &&
       (model[NUMVERTS].isLogging == true ? model[NUMVERTS].value       : NumVertices)  == NumVertices &&
       (model[PRIMCOUNT].isLogging == true ? model[PRIMCOUNT].value     : primCount)    == primCount &&
       (model[STARTINDEX].isLogging == true ? model[STARTINDEX].value   : startIndex)   == startIndex)
    {

Answer 1

#1. 
if (model[STRIDE].isLogging is true then 
    RESULT1 = (model[STRIDE].value == g_uiStride) else
    RESULT1 = (g_uiStride == g_uiStride)
   )   

#2. 
if (model[NUMVERTS].isLogging is true then 
    RESULT2 = (model[NUMVERTS].value == NumVertices) else
    RESULT2 = (mVertices == NumVertices)
   )        

#3. 
if (model[PRIMCOUNT].isLogging is true then
    RESULT3 = (model[PRIMCOUNT].value == primCount) else
    RESULT3 = (primCount == primCount)
   }   

#4. 
if (model[STARTINDEX].isLogging is true then
    RESULT4 = (model[STARTINDEX].value == startIndex) else
    RESULT4 = (startIndex == startIndex)
   )   

if (RESULT1 && RESULT2 && RESULT3 && RESULT4) {
    /* yay */
} else {
    /* damn */
}