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XPRSslpgetcoefstr

Purpose
Retrieve a single matrix coefficient as a formula in a character string. For a simpler version of this function see XPRSnlpgetformulastr.
Synopsis
int XPRS_CC XPRSslpgetcoefstr(XPRSprob prob, int row, int col, double *p_factor, char *formula, int maxbytes, int *p_nbytes);
Arguments
prob 
The current SLP problem.
row 
Integer holding the row index for the coefficient.
col 
Integer holding the column index for the coefficient.
p_factor 
Address of a double precision variable to receive the value of the constant factor multiplying the formula in the coefficient.
formula 
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. This argument may be NULL if maxbytes is zero.
maxbytes 
Length of the formula buffer.
p_nbytes 
Will be set to the length of the formula, not including the null terminator.
Example
The following example displays the formula for the coefficient of column 3 in row 2:
char *buffer;
double factor;
int len;

XPRSslpgetcoefstr(prob, 2, 3, &factor, NULL, 0, &len);
buffer = malloc(len + 1);
XPRSslpgetcoefstr(prob, 2, 3, &factor, buffer, len + 1, NULL);
printf("\nFormula is %s", buffer);
Further information

If the requested coefficient is constant, then p_factor will be set to 1.0 and the value will be formatted in formula.

If the length of the formula would exceed maxbytes-1, the formula is truncated to the last token that will fit, and the (partial) formula is terminated with a null character.


Related topics

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