Help with strncmp fxn

[3kgt]

Hey guys I can get this to compile, but the results should come back as 0 or 1 but if i try to output the results of c1 or c2, I get -44 or 8, which does not make sense. What might be wrong with this statement:

  for( int i=0; i<36; i++){
    int c1=0;
    int c2=0;
  //compares user locations with the input file
   c1= strncmp(userLocA, b[index].getLocationOne(),strlen(userLocA));
   c2 = strncmp(userLocB, b[index].getLocationTwo(),strlen(userLocB));
  
   if(c1==0 && c2==0)
      
    
      break;
  }

[The Dog]

Declaration:

int strncmp(const char *str1, const char *str2, size_t n);

Compares at most the first n bytes of str1 and str2. Stops comparing after the null character.

Returns zero if the first n bytes (or null terminated length) of str1 and str2 are equal. Returns less than zero or greater than zero if str1 is less than or greater than str2 respectively.

[swoopy]

> c1= strncmp(userLocA, b[index].getLocationOne(),strlen(userLocA));

Maybe this should be i?
c1= strncmp(userLocA, b[i].getLocationOne(),strlen(userLocA));

[3kgt]

The Dog You have to excuse me I am a little new at this can you help me apply this to my function?


Swoopy, no I have index from earlier in my program its a string I need to compare from an input file stored in b which is a class i created

[The Dog]

>> Hey guys I can get this to compile, but the results should come back as 0 or 1

The return value of strncmp() could be a negative number ( < 0 ), or 0, or a positive number ( > 0 ).

[The Dog]

>> Hey guys I can get this to compile, but the results should come back as 0 or 1

The return value of strncmp() could be a negative number ( < 0 ), or 0, or a positive number ( > 0 ).

Therefore "-44" shows that the string is less than, and "8" shows that the string is more than.

Print the string that you are comparing before you compare them.