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Reject breaktables with slope of zero.

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This commit is contained in:
Andrew Johnson
2009-07-22 22:58:09 +00:00
parent 38b81b44be
commit c986597f1c
1 changed files with 5 additions and 1 deletions
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6
src/dbStatic/dbLexRoutines.c
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@@ -872,10 +872,14 @@ static void dbBreakBody(void)
double slope =
(paBrkInt[i+1].eng - paBrkInt[i].eng)/
(paBrkInt[i+1].raw - paBrkInt[i].raw);
if (!dbBptNotMonotonic && slope == 0) {
yyerrorAbort("breaktable slope is zero");
return;
}
if (i == 0) {
down = (slope < 0);
} else if (!dbBptNotMonotonic && down != (slope < 0)) {
yyerrorAbort("breaktable: curve slope changes sign");
yyerrorAbort("breaktable slope changes sign");
return;
}
paBrkInt[i].slope = slope;