Purpose
Set up the argument information array for a user function call
Synopsis
int XPRS_CC XSLPsetuserfuncinfo(XSLPprob Prob, int *ArgInfo,
int CallerFlag, int nInput, int nReturn, int nDelta,
int nInString, int nOutString);
Arguments
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Prob
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The current SLP problem.
|
|
ArgInfo
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The array to be set up. This must be dimensioned at least
XSLP_FUNCINFOSIZE.
|
|
CallerFlag
|
An integer which can be used for any purpose to communicate
between the calling and called program. This value will always be zero for user functions
which are called directly by Xpress-SLP.
|
|
nInput
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The number of input values.
|
|
nReturn
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The number of return values required.
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nDelta
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The number of sets of partial derivatives required.
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nInString
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The number of strings contained in the ARGNAME argument
to the user function.
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nOutString
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The number of strings contained in the RETNAME argument
to the user function .
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Example
The following example sets up the argument information array and then
calls the user function ProfitCalc:
int ArgInfo[XSLP_FUNCINFOSIZE];
double Values[3];
int iFunc;
XSLPsetuserfuncinfo(Prob, ArgInfo, 99, 3, 1,
0, 0, 0);
XSLPgetindex(Prob, XSLP_USERFUNCNAMESNOCASE,
"PackCalcs", &iFunc);
Result = XSLPcalluserfunc(Prob, iFunc, Values,
ArgInfo, NULL, NULL, NULL, NULL);The function is called with 3 values in Value and expects 1 return
value. There are no names expected by the function.
Further information
The total number of values returned will be (nReturn)*(nDelta+1).
Related topics
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