title: Why isn't my wrapper around setenv() working?
body: <p>I have the method below, and it correctly sets the ret value to 0 (indicating success in setenv), but when I check to see if this environment variable is actually set, it's absent. Why would this be happening?</p>
  
  <pre><code> void Class::mysetenv(char* a, char* b)                           
       {   
           if(a==0 || b==0)
               return;
  
           int ret = setenv(strdup(a), strdup(b), 1);
           printf("ret: %d %s %s\n", ret, a, b);                          
       }
  </code></pre>