foo.c: In function 'evaluatePolyLinkList':
foo.c:42:42: warning: implicit declaration of function 'pow' [-Wimplicit-function-declaration]
   42 |         result += current->coefficient * pow(x, current->exponent);
      |                                          ^~~
foo.c:3:1: note: include '<math.h>' or provide a declaration of 'pow'
    2 | #include <stdlib.h>
  +++ |+#include <math.h>
    3 | 
foo.c:42:42: warning: incompatible implicit declaration of built-in function 'pow' [-Wbuiltin-declaration-mismatch]
   42 |         result += current->coefficient * pow(x, current->exponent);
      |                                          ^~~
foo.c:42:42: note: include '<math.h>' or provide a declaration of 'pow'

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