NAG CL Interface
e04whc (nlp2_​option_​double_​set)

1 Purpose

2 Specification

3 Description

factol = 100.0;
if (illcon) factol = 5.0;
e04whc ("LU Factor Tolerance", factol, &state, &fail);

4 References

5 Arguments

1: $\mathbf{string}$ – const char * Input

On entry: a single valid keyword of a double optional parameter (as described in Section 12 in e04wdc).

2: $\mathbf{rvalue}$ – double Input

On entry: the value associated with the keyword in string.

3: $\mathbf{state}$ – Nag_E04State * Communication Structure

state contains internal information required for functions in this suite. It must not be modified in any way.

4: $\mathbf{fail}$ – NagError * Input/Output

The NAG error argument (see Section 7 in the Introduction to the NAG Library CL Interface).

6 Error Indicators and Warnings

NE_ALLOC_FAIL

Dynamic memory allocation failed.
See Section 3.1.2 in the Introduction to the NAG Library CL Interface for further information.

NE_BAD_PARAM

On entry, argument $〈\mathit{\text{value}}〉$ had an illegal value.

NE_E04_OPTION_INVALID

The supplied option is invalid. Check that the keywords are neither ambiguous nor misspelt. The option string is ‘$〈\mathit{\text{value}}〉$’ and $\mathbf{rvalue}=〈\mathit{\text{value}}〉$.

NE_E04WCC_NOT_INIT

The initialization function e04wcc has not been called.

NE_INTERNAL_ERROR

An internal error has occurred in this function. Check the function call and any array sizes. If the call is correct then please contact NAG for assistance.
See Section 7.5 in the Introduction to the NAG Library CL Interface for further information.

NE_NO_LICENCE

Your licence key may have expired or may not have been installed correctly.
See Section 8 in the Introduction to the NAG Library CL Interface for further information.

7 Accuracy

8 Parallelism and Performance

9 Further Comments

10 Example