search for: coefold

...9) it is theoretically possible that on some executions of this chunk pivoting occurs and on others there is no pivoting. Hoever, if the new coefficients are unsuitable and either the block at lines 98-114 or lines 115-130 is entered, then "start" is modified by shrinking it toward "coefold". There are two problems: 1) If this happens the first time the loop in lines 60-139 is executed, then coefold is initialised to the value of "start" that was passed down to the routine (line 58). This might well be NULL (usually is?). In this case line 105 and line 122 would pr...