strcmp Producing NullReferenceException

[iknc4miles]

Hey everyone,

Below I try to use strcmp to compare svr_type to a constant string array. Occasionally this produces a NullReferenceException. I put in a try catch just so I could get the full error and this is what I got:

System.NullReferenceException: Object reference not set to an instance of an object.
at strcmp(SByte* , SByte* )

I'm not entirely sure why. getNextWord modifies the input string and returns a pointer to a new char[30] so the memory must be allocated.

Any ideas?

- iknc4miles

try
{
     char* svr_type;
     svr_type = getNextWord(&str);
 
     if( strcmp(svr_type, "ALG") == 0)
     {
         // Does Algorithm server already exist?
     }
     else if(strcmp(svr_type, "ENV") == 0)
     {
         // Does Environment server already exist?
     }
 
 }
 catch(NullReferenceException *e)
 {
     tbLog->AppendText(e->ToString());
     return;
 }

[horace1]

try printing out the string pointed at to check what you are getting?

     char* svr_type;
     svr_type = getNextWord(&str);
         printf("%s\n", svr_type);
 
..