Template Function thrust::replace(ForwardIterator, ForwardIterator, const T&, const T&)

Function Documentation

template<typename ForwardIterator, typename T>
void thrust::replace(ForwardIterator first, ForwardIterator last, const T &old_value, const T &new_value)

replace replaces every element in the range [first, last) equal to old_value with new_value. That is: for every iterator i, if *i == old_value then it performs the assignment *i = new_value.

The following code snippet demonstrates how to use

replace to replace a value of interest in a device_vector with another.
Parameters

  • first: The beginning of the sequence of interest.

  • last: The end of the sequence of interest.

  • old_value: The value to replace.

  • new_value: The new value to replace old_value.

Template Parameters

  • ForwardIterator: is a model of Forward Iterator, and ForwardIterator is mutable.

  • T: is a model of Assignable, T is a model of EqualityComparable, objects of T may be compared for equality with objects of ForwardIterator's value_type, and T is convertible to ForwardIterator's value_type.

#include <thrust/replace.h>
#include <thrust/device_vector.h>

...

thrust::device_vector<int> A(4);
A[0] = 1;
A[1] = 2;
A[2] = 3;
A[3] = 1;

thrust::replace(A.begin(), A.end(), 1, 99);

// A contains [99, 2, 3, 99]

See

http://www.sgi.com/tech/stl/replace.html

See

replace_if

See

replace_copy

See

replace_copy_if