<cstdlib>

The contents of the <cstdlib> headers is the same as the Standard C library headers <stdlib.h>. In addition to the int versions of certain math functions in <cstdlib>, C++ adds long overloaded versions of some functions, with the same semantics.

  long double abs (long double);
  long double acos (long double);
  long double asin (long double);
  long double atan (long double);
  long double atan2(long double, long double);
  long double ceil (long double);
  long double cos (long double);
  long double cosh (long double);
  long double exp (long double);
  long double fabs (long double);
  long double floor(long double);
  long double fmod (long double, long double);
  long double frexp(long double, int*);
  long double ldexp(long double, int);
  long double log (long double);
  long double log10(long double);
  long double modf (long double, long double*);
  long double pow (long double, long double);
  long double pow (long double, int);
  long double sin (long double);
  long double sinh (long double);
  long double sqrt (long double);
  long double tan (long double);
  long double tanh (long double);
  float abs (float);
  float acos (float);
  float asin (float);
  float atan (float);
  float atan2(float, float);
  float ceil (float);
  float cos (float);
  float cosh (float);
  float exp (float);
  float fabs (float);
  float floor(float);
  float fmod (float, float);
  float frexp(float, int*);
  float ldexp(float, int);
  float log (float);
  float log10(float);
  float modf (float, float*);
  float pow (float, float);
  float pow (float, int);
  float sin (float);
  float sinh (float);
  float sqrt (float);
  float tan (float);
  float tanh (float);
  double abs(double); 
  double pow(double, int);