thrust::minimum

template<typename T = void> struct minimum : public cuda::minimum<void>

minimum is a function object that takes two arguments and returns the lesser of the two. Specifically, it is an Adaptable Binary Function. If f is an object of class minimum<T> and x and y are objects of class T f(x,y) returns x if x < y and y, otherwise.

The following code snippet demonstrates that minimum returns its lesser argument.

#include <thrust/functional.h>
#include <assert.h>
...
int x =  137;
int y = -137;
thrust::minimum<int> mn;
assert(y == mn(x,y));