Returns vector of elements containing the next representable floating-point values following the values from the elements of one vector in the direction of the corresponding elements of another vector.
Buffer API:
void nextafter( queue& exec_queue, int64_t n, buffer<T,1>& a, buffer<T,1>& b, buffer<T,1>& y, uint64_t mode = mode::not_defined, error_handler<T> errhandler = {} );
USM API:
event nextafter( queue& exec_queue, int64_t n, T* a, T* b, T* y, vector_class<event>* depends, uint64_t mode = mode::not_defined, error_handler<T> errhandler = {} );
nextafter supports the following precisions and devices:
T | Devices supported |
---|---|
float | Host, CPU, and GPU |
double | Host, CPU, and GPU |
The nextafter(a,b) function returns a vector containing the next representable floating-point values following the first vector argument elements in the direction of the second vector argument's corresponding elements.
Arguments/Results | Error Code |
---|---|
Input vector argument element is finite and the corresponding result vector element value is infinite | status::overflow |
Result vector element value is subnormal or zero, and different from the corresponding input vector argument element | status::underflow |
Even though underflow or overflow can occur, the returned value is independent of the current rounding direction mode.
Buffer API:
The queue where the routine should be executed.
Specifies the number of elements to be calculated.
The buffer a containing 1st input vector of size n.
The buffer b containing 2nd input vector of size n.
Overrides the global VM mode setting for this function call. See set_mode function for possible values and their description. This is an optional parameter. The default value is mode::not_defined.
Sets local error handling mode for this function call. See the create_error_handler function for arguments and their descriptions. This is an optional parameter. The local error handler is disabled by default.
USM API:
The queue where the routine should be executed.
Specifies the number of elements to be calculated.
Pointer a to the 1st input vector of size n.
Pointer b to the 2nd input vector of size n.
Vector of dependent events (to wait for input data to be ready).
Overrides the global VM mode setting for this function call. See the set_mode function for possible values and their description. This is an optional parameter. The default value is mode::not_defined.
Sets local error handling mode for this function call. See the create_error_handler function for arguments and their descriptions. This is an optional parameter. The local error handler is disabled by default.
Buffer API:
The buffer y containing the output vector of size n.
USM API:
Pointer y to the output vector of size n.
Function end event.
An example of how to use nextaftercan be found in the Intel® oneMKL installation directory, under:
examples/sycl/vml/vnextafter.cpp