XSLPgetccoef
XSLPgetccoef |
Purpose
Retrieve a single matrix coefficient as a formula in a character string. For a simpler version of this function see XSLPgetformulatext.
Synopsis
int XPRS_CC XSLPgetccoef(XSLPprob Prob, int RowIndex, int ColIndex, double *Factor, char *Formula, int fLen);
Arguments
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Prob
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The current SLP problem.
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RowIndex
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Integer holding the row index for the coefficient.
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ColIndex
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Integer holding the column index for the coefficient.
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Factor
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Address of a double precision variable to receive the value of the constant factor multiplying the formula in the coefficient.
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Formula
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Character buffer in which the formula will be placed in the same format as used for input from a file. The formula will be null terminated. |
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fLen
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Maximum length of returned formula.
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Return value
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0
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Normal return.
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1
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Formula is too long for the buffer and has been truncated.
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other
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Error.
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Example
The following example displays the formula for the coefficient in row 2, column 3:
char Buffer[60];
double Factor;
int Code;
Code = XSLPgetccoef(Prob, 2, 3, &Factor, Buffer, 60);
switch (Code) {
case 0: printf("\nFormula is %s",Buffer);
printf("\nFactor = %lg",Factor);
break;
case 1: printf("\nFormula is too long for the buffer");
break;
default: printf("\nError accessing coefficient");
break;
}
Further information
If the requested coefficient is constant, then Factor will be set to 1 and the value will be formatted in Formula.
If the length of the formula would exceed fLen-1, the formula is truncated to the last token that will fit, and the (partial) formula is terminated with a null character.
Related topics
XSLPgetformulatext,
XSLPaddformulas,
XSLPchgformulatext,
XSLPchgformula,
XSLPloadformulas,
XSLPgetformularows,
XSLPgetformula,
XSLPdelformulas