diff options
Diffstat (limited to 'xfa/src/fxbarcode/pdf417/BC_PDF417ECErrorCorrection.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/pdf417/BC_PDF417ECErrorCorrection.cpp | 617 |
1 files changed, 318 insertions, 299 deletions
diff --git a/xfa/src/fxbarcode/pdf417/BC_PDF417ECErrorCorrection.cpp b/xfa/src/fxbarcode/pdf417/BC_PDF417ECErrorCorrection.cpp index d80a7f86ac..344e4b8d5b 100644 --- a/xfa/src/fxbarcode/pdf417/BC_PDF417ECErrorCorrection.cpp +++ b/xfa/src/fxbarcode/pdf417/BC_PDF417ECErrorCorrection.cpp @@ -26,344 +26,363 @@ #include "BC_PDF417ECModulusGF.h"
#include "BC_PDF417ECErrorCorrection.h"
CBC_PDF417ECModulusGF* CBC_PDF417ECErrorCorrection::m_field = NULL;
-void CBC_PDF417ECErrorCorrection::Initialize(int32_t &e)
-{
- m_field = FX_NEW CBC_PDF417ECModulusGF(CBC_PDF417Common::NUMBER_OF_CODEWORDS, 3, e);
+void CBC_PDF417ECErrorCorrection::Initialize(int32_t& e) {
+ m_field =
+ FX_NEW CBC_PDF417ECModulusGF(CBC_PDF417Common::NUMBER_OF_CODEWORDS, 3, e);
}
-void CBC_PDF417ECErrorCorrection::Finalize()
-{
- delete m_field;
+void CBC_PDF417ECErrorCorrection::Finalize() {
+ delete m_field;
}
-CBC_PDF417ECErrorCorrection::CBC_PDF417ECErrorCorrection()
-{
-}
-CBC_PDF417ECErrorCorrection::~CBC_PDF417ECErrorCorrection()
-{
-}
-int32_t CBC_PDF417ECErrorCorrection::decode(CFX_Int32Array &received, int32_t numECCodewords, CFX_Int32Array &erasures, int32_t &e)
-{
- CBC_PDF417ECModulusPoly poly(m_field, received, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, -1);
- CFX_Int32Array S;
- S.SetSize(numECCodewords);
- FX_BOOL error = FALSE;
- for (int32_t l = numECCodewords; l > 0; l--) {
- int32_t eval = poly.evaluateAt(m_field->exp(l));
- S[numECCodewords - l] = eval;
- if (eval != 0) {
- error = TRUE;
- }
- }
- if (!error) {
- return 0;
+CBC_PDF417ECErrorCorrection::CBC_PDF417ECErrorCorrection() {}
+CBC_PDF417ECErrorCorrection::~CBC_PDF417ECErrorCorrection() {}
+int32_t CBC_PDF417ECErrorCorrection::decode(CFX_Int32Array& received,
+ int32_t numECCodewords,
+ CFX_Int32Array& erasures,
+ int32_t& e) {
+ CBC_PDF417ECModulusPoly poly(m_field, received, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, -1);
+ CFX_Int32Array S;
+ S.SetSize(numECCodewords);
+ FX_BOOL error = FALSE;
+ for (int32_t l = numECCodewords; l > 0; l--) {
+ int32_t eval = poly.evaluateAt(m_field->exp(l));
+ S[numECCodewords - l] = eval;
+ if (eval != 0) {
+ error = TRUE;
}
- CBC_PDF417ECModulusPoly* syndrome = FX_NEW CBC_PDF417ECModulusPoly(m_field, S, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, -1);
- CBC_PDF417ECModulusPoly* buildmonomial = m_field->buildMonomial(numECCodewords, 1, e);
- if (e != BCExceptionNO) {
- delete syndrome;
- return -1;
- }
- CFX_PtrArray* sigmaOmega = runEuclideanAlgorithm(buildmonomial, syndrome, numECCodewords, e);
- delete buildmonomial;
+ }
+ if (!error) {
+ return 0;
+ }
+ CBC_PDF417ECModulusPoly* syndrome =
+ FX_NEW CBC_PDF417ECModulusPoly(m_field, S, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, -1);
+ CBC_PDF417ECModulusPoly* buildmonomial =
+ m_field->buildMonomial(numECCodewords, 1, e);
+ if (e != BCExceptionNO) {
delete syndrome;
- BC_EXCEPTION_CHECK_ReturnValue(e, -1);
- CBC_PDF417ECModulusPoly* sigma = (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(0);
- CBC_PDF417ECModulusPoly* omega = (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(1);
- CFX_Int32Array* errorLocations = findErrorLocations(sigma, e);
- if (e != BCExceptionNO) {
- for (int32_t i = 0; i < sigmaOmega->GetSize(); i++) {
- delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(i);
- }
- sigmaOmega->RemoveAll();
- delete sigmaOmega;
- return -1;
- }
- CFX_Int32Array* errorMagnitudes = findErrorMagnitudes(omega, sigma, *errorLocations, e);
- if (e != BCExceptionNO) {
- delete errorLocations;
- for (int32_t i = 0; i < sigmaOmega->GetSize(); i++) {
- delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(i);
- }
- sigmaOmega->RemoveAll();
- delete sigmaOmega;
- return -1;
+ return -1;
+ }
+ CFX_PtrArray* sigmaOmega =
+ runEuclideanAlgorithm(buildmonomial, syndrome, numECCodewords, e);
+ delete buildmonomial;
+ delete syndrome;
+ BC_EXCEPTION_CHECK_ReturnValue(e, -1);
+ CBC_PDF417ECModulusPoly* sigma =
+ (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(0);
+ CBC_PDF417ECModulusPoly* omega =
+ (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(1);
+ CFX_Int32Array* errorLocations = findErrorLocations(sigma, e);
+ if (e != BCExceptionNO) {
+ for (int32_t i = 0; i < sigmaOmega->GetSize(); i++) {
+ delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(i);
}
- for (int32_t i = 0; i < errorLocations->GetSize(); i++) {
- int32_t log = m_field->log(errorLocations->GetAt(i), e);;
- BC_EXCEPTION_CHECK_ReturnValue(e, -1);
- int32_t position = received.GetSize() - 1 - log;
- if (position < 0) {
- e = BCExceptionChecksumException;
- delete errorLocations;
- delete errorMagnitudes;
- for (int32_t j = 0; j < sigmaOmega->GetSize(); j++) {
- delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(j);
- }
- sigmaOmega->RemoveAll();
- delete sigmaOmega;
- return -1;
- }
- received[position] = m_field->subtract(received[position], errorMagnitudes->GetAt(i));
- }
- int32_t result = errorLocations->GetSize();
+ sigmaOmega->RemoveAll();
+ delete sigmaOmega;
+ return -1;
+ }
+ CFX_Int32Array* errorMagnitudes =
+ findErrorMagnitudes(omega, sigma, *errorLocations, e);
+ if (e != BCExceptionNO) {
delete errorLocations;
- delete errorMagnitudes;
- for (int32_t k = 0; k < sigmaOmega->GetSize(); k++) {
- delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(k);
+ for (int32_t i = 0; i < sigmaOmega->GetSize(); i++) {
+ delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(i);
}
sigmaOmega->RemoveAll();
delete sigmaOmega;
- return result;
+ return -1;
+ }
+ for (int32_t i = 0; i < errorLocations->GetSize(); i++) {
+ int32_t log = m_field->log(errorLocations->GetAt(i), e);
+ ;
+ BC_EXCEPTION_CHECK_ReturnValue(e, -1);
+ int32_t position = received.GetSize() - 1 - log;
+ if (position < 0) {
+ e = BCExceptionChecksumException;
+ delete errorLocations;
+ delete errorMagnitudes;
+ for (int32_t j = 0; j < sigmaOmega->GetSize(); j++) {
+ delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(j);
+ }
+ sigmaOmega->RemoveAll();
+ delete sigmaOmega;
+ return -1;
+ }
+ received[position] =
+ m_field->subtract(received[position], errorMagnitudes->GetAt(i));
+ }
+ int32_t result = errorLocations->GetSize();
+ delete errorLocations;
+ delete errorMagnitudes;
+ for (int32_t k = 0; k < sigmaOmega->GetSize(); k++) {
+ delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(k);
+ }
+ sigmaOmega->RemoveAll();
+ delete sigmaOmega;
+ return result;
}
-CFX_PtrArray* CBC_PDF417ECErrorCorrection::runEuclideanAlgorithm(CBC_PDF417ECModulusPoly* a, CBC_PDF417ECModulusPoly* b, int32_t R, int32_t &e)
-{
- if (a->getDegree() < b->getDegree()) {
- CBC_PDF417ECModulusPoly* temp = a;
- a = b;
- b = temp;
+CFX_PtrArray* CBC_PDF417ECErrorCorrection::runEuclideanAlgorithm(
+ CBC_PDF417ECModulusPoly* a,
+ CBC_PDF417ECModulusPoly* b,
+ int32_t R,
+ int32_t& e) {
+ if (a->getDegree() < b->getDegree()) {
+ CBC_PDF417ECModulusPoly* temp = a;
+ a = b;
+ b = temp;
+ }
+ CBC_PDF417ECModulusPoly* rLast = a;
+ CBC_PDF417ECModulusPoly* r = b;
+ CBC_PDF417ECModulusPoly* tLast = m_field->getZero();
+ CBC_PDF417ECModulusPoly* t = m_field->getOne();
+ CBC_PDF417ECModulusPoly* qtemp = NULL;
+ CBC_PDF417ECModulusPoly* rtemp = NULL;
+ CBC_PDF417ECModulusPoly* ttemp = NULL;
+ int32_t i = 0;
+ int32_t j = 0;
+ int32_t m = 0;
+ int32_t n = 0;
+ while (r->getDegree() >= R / 2) {
+ CBC_PDF417ECModulusPoly* rLastLast = rLast;
+ CBC_PDF417ECModulusPoly* tLastLast = tLast;
+ rLast = r;
+ tLast = t;
+ m = i;
+ n = j;
+ if (rLast->isZero()) {
+ e = BCExceptionChecksumException;
+ if (qtemp) {
+ delete qtemp;
+ }
+ if (rtemp) {
+ delete rtemp;
+ }
+ if (ttemp) {
+ delete ttemp;
+ }
+ return NULL;
}
- CBC_PDF417ECModulusPoly* rLast = a;
- CBC_PDF417ECModulusPoly* r = b;
- CBC_PDF417ECModulusPoly* tLast = m_field->getZero();
- CBC_PDF417ECModulusPoly* t = m_field->getOne();
- CBC_PDF417ECModulusPoly* qtemp = NULL;
- CBC_PDF417ECModulusPoly* rtemp = NULL;
- CBC_PDF417ECModulusPoly* ttemp = NULL;
- int32_t i = 0;
- int32_t j = 0;
- int32_t m = 0;
- int32_t n = 0;
- while (r->getDegree() >= R / 2) {
- CBC_PDF417ECModulusPoly* rLastLast = rLast;
- CBC_PDF417ECModulusPoly* tLastLast = tLast;
- rLast = r;
- tLast = t;
- m = i;
- n = j;
- if (rLast->isZero()) {
- e = BCExceptionChecksumException;
- if (qtemp) {
- delete qtemp;
- }
- if (rtemp) {
- delete rtemp;
- }
- if (ttemp) {
- delete ttemp;
- }
- return NULL;
- }
- r = rLastLast;
- CBC_PDF417ECModulusPoly* q = m_field->getZero();
- int32_t denominatorLeadingTerm = rLast->getCoefficient(rLast->getDegree());
- int32_t dltInverse = m_field->inverse(denominatorLeadingTerm, e);
- if (e != BCExceptionNO) {
- if (qtemp) {
- delete qtemp;
- }
- if (rtemp) {
- delete rtemp;
- }
- if (ttemp) {
- delete ttemp;
- }
- return NULL;
- }
- while (r->getDegree() >= rLast->getDegree() && !r->isZero()) {
- int32_t degreeDiff = r->getDegree() - rLast->getDegree();
- int32_t scale = m_field->multiply(r->getCoefficient(r->getDegree()), dltInverse);
- CBC_PDF417ECModulusPoly* buildmonomial = m_field->buildMonomial(degreeDiff, scale, e);
- if (e != BCExceptionNO) {
- if (qtemp) {
- delete qtemp;
- }
- if (rtemp) {
- delete rtemp;
- }
- if (ttemp) {
- delete ttemp;
- }
- return NULL;
- }
- q = q->add(buildmonomial, e);
- delete buildmonomial;
- if (qtemp) {
- delete qtemp;
- }
- if (e != BCExceptionNO) {
- if (rtemp) {
- delete rtemp;
- }
- if (ttemp) {
- delete ttemp;
- }
- return NULL;
- }
- qtemp = q;
- CBC_PDF417ECModulusPoly* multiply = rLast->multiplyByMonomial(degreeDiff, scale, e);
- if (e != BCExceptionNO) {
- if (qtemp) {
- delete qtemp;
- }
- if (rtemp) {
- delete rtemp;
- }
- if (ttemp) {
- delete ttemp;
- }
- return NULL;
- }
- CBC_PDF417ECModulusPoly* temp = r;
- r = temp->subtract(multiply, e);
- delete multiply;
- if (m > 1 && i > m) {
- delete temp;
- temp = NULL;
- }
- if (e != BCExceptionNO) {
- if (qtemp) {
- delete qtemp;
- }
- if (rtemp) {
- delete rtemp;
- }
- if (ttemp) {
- delete ttemp;
- }
- return NULL;
- }
- rtemp = r;
- i = m + 1;
- }
- ttemp = q->multiply(tLast, e);
+ r = rLastLast;
+ CBC_PDF417ECModulusPoly* q = m_field->getZero();
+ int32_t denominatorLeadingTerm = rLast->getCoefficient(rLast->getDegree());
+ int32_t dltInverse = m_field->inverse(denominatorLeadingTerm, e);
+ if (e != BCExceptionNO) {
+ if (qtemp) {
+ delete qtemp;
+ }
+ if (rtemp) {
+ delete rtemp;
+ }
+ if (ttemp) {
+ delete ttemp;
+ }
+ return NULL;
+ }
+ while (r->getDegree() >= rLast->getDegree() && !r->isZero()) {
+ int32_t degreeDiff = r->getDegree() - rLast->getDegree();
+ int32_t scale =
+ m_field->multiply(r->getCoefficient(r->getDegree()), dltInverse);
+ CBC_PDF417ECModulusPoly* buildmonomial =
+ m_field->buildMonomial(degreeDiff, scale, e);
+ if (e != BCExceptionNO) {
if (qtemp) {
- delete qtemp;
- qtemp = NULL;
+ delete qtemp;
}
- if (e != BCExceptionNO) {
- if (rtemp) {
- delete rtemp;
- }
- if (ttemp) {
- delete ttemp;
- }
- return NULL;
+ if (rtemp) {
+ delete rtemp;
}
- t = ttemp->subtract(tLastLast, e);
- if (n > 1 && j > n) {
- delete tLastLast;
+ if (ttemp) {
+ delete ttemp;
}
- delete ttemp;
- if (e != BCExceptionNO) {
- if (rtemp) {
- delete rtemp;
- }
- return NULL;
+ return NULL;
+ }
+ q = q->add(buildmonomial, e);
+ delete buildmonomial;
+ if (qtemp) {
+ delete qtemp;
+ }
+ if (e != BCExceptionNO) {
+ if (rtemp) {
+ delete rtemp;
}
- ttemp = t;
- t = ttemp->negative(e);
- delete ttemp;
- if (e != BCExceptionNO) {
- if (rtemp) {
- delete rtemp;
- }
- return NULL;
+ if (ttemp) {
+ delete ttemp;
+ }
+ return NULL;
+ }
+ qtemp = q;
+ CBC_PDF417ECModulusPoly* multiply =
+ rLast->multiplyByMonomial(degreeDiff, scale, e);
+ if (e != BCExceptionNO) {
+ if (qtemp) {
+ delete qtemp;
}
- ttemp = t;
- j++;
- }
- int32_t aa = t->getCoefficient(1);
- int32_t sigmaTildeAtZero = t->getCoefficient(0);
- if (sigmaTildeAtZero == 0) {
- e = BCExceptionChecksumException;
if (rtemp) {
- delete rtemp;
+ delete rtemp;
}
if (ttemp) {
- delete ttemp;
+ delete ttemp;
}
return NULL;
- }
- int32_t inverse = m_field->inverse(sigmaTildeAtZero, e);
- if (e != BCExceptionNO) {
+ }
+ CBC_PDF417ECModulusPoly* temp = r;
+ r = temp->subtract(multiply, e);
+ delete multiply;
+ if (m > 1 && i > m) {
+ delete temp;
+ temp = NULL;
+ }
+ if (e != BCExceptionNO) {
+ if (qtemp) {
+ delete qtemp;
+ }
if (rtemp) {
- delete rtemp;
+ delete rtemp;
}
if (ttemp) {
- delete ttemp;
+ delete ttemp;
}
return NULL;
+ }
+ rtemp = r;
+ i = m + 1;
}
- CBC_PDF417ECModulusPoly* sigma = t->multiply(inverse, e);
- if (ttemp) {
+ ttemp = q->multiply(tLast, e);
+ if (qtemp) {
+ delete qtemp;
+ qtemp = NULL;
+ }
+ if (e != BCExceptionNO) {
+ if (rtemp) {
+ delete rtemp;
+ }
+ if (ttemp) {
delete ttemp;
+ }
+ return NULL;
}
+ t = ttemp->subtract(tLastLast, e);
+ if (n > 1 && j > n) {
+ delete tLastLast;
+ }
+ delete ttemp;
if (e != BCExceptionNO) {
- if (rtemp) {
- delete rtemp;
- }
- return NULL;
+ if (rtemp) {
+ delete rtemp;
+ }
+ return NULL;
}
- CBC_PDF417ECModulusPoly* omega = r->multiply(inverse, e);
- if (rtemp) {
+ ttemp = t;
+ t = ttemp->negative(e);
+ delete ttemp;
+ if (e != BCExceptionNO) {
+ if (rtemp) {
delete rtemp;
+ }
+ return NULL;
}
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- CFX_PtrArray* modulusPoly = FX_NEW CFX_PtrArray;
- modulusPoly->Add(sigma);
- modulusPoly->Add(omega);
- return modulusPoly;
-}
-CFX_Int32Array* CBC_PDF417ECErrorCorrection::findErrorLocations(CBC_PDF417ECModulusPoly* errorLocator, int32_t &e)
-{
- int32_t numErrors = errorLocator->getDegree();
- CFX_Int32Array* result = FX_NEW CFX_Int32Array;
- result->SetSize(numErrors);
- int32_t ee = 0;
- for (int32_t i = 1; i < m_field->getSize() && ee < numErrors; i++) {
- if (errorLocator->evaluateAt(i) == 0) {
- result->SetAt(ee, m_field->inverse(i, e));
- if (e != BCExceptionNO) {
- delete result;
- return NULL;
- }
- ee++;
- }
+ ttemp = t;
+ j++;
+ }
+ int32_t aa = t->getCoefficient(1);
+ int32_t sigmaTildeAtZero = t->getCoefficient(0);
+ if (sigmaTildeAtZero == 0) {
+ e = BCExceptionChecksumException;
+ if (rtemp) {
+ delete rtemp;
}
- if (ee != numErrors) {
- e = BCExceptionChecksumException;
+ if (ttemp) {
+ delete ttemp;
+ }
+ return NULL;
+ }
+ int32_t inverse = m_field->inverse(sigmaTildeAtZero, e);
+ if (e != BCExceptionNO) {
+ if (rtemp) {
+ delete rtemp;
+ }
+ if (ttemp) {
+ delete ttemp;
+ }
+ return NULL;
+ }
+ CBC_PDF417ECModulusPoly* sigma = t->multiply(inverse, e);
+ if (ttemp) {
+ delete ttemp;
+ }
+ if (e != BCExceptionNO) {
+ if (rtemp) {
+ delete rtemp;
+ }
+ return NULL;
+ }
+ CBC_PDF417ECModulusPoly* omega = r->multiply(inverse, e);
+ if (rtemp) {
+ delete rtemp;
+ }
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ CFX_PtrArray* modulusPoly = FX_NEW CFX_PtrArray;
+ modulusPoly->Add(sigma);
+ modulusPoly->Add(omega);
+ return modulusPoly;
+}
+CFX_Int32Array* CBC_PDF417ECErrorCorrection::findErrorLocations(
+ CBC_PDF417ECModulusPoly* errorLocator,
+ int32_t& e) {
+ int32_t numErrors = errorLocator->getDegree();
+ CFX_Int32Array* result = FX_NEW CFX_Int32Array;
+ result->SetSize(numErrors);
+ int32_t ee = 0;
+ for (int32_t i = 1; i < m_field->getSize() && ee < numErrors; i++) {
+ if (errorLocator->evaluateAt(i) == 0) {
+ result->SetAt(ee, m_field->inverse(i, e));
+ if (e != BCExceptionNO) {
delete result;
return NULL;
+ }
+ ee++;
}
- return result;
+ }
+ if (ee != numErrors) {
+ e = BCExceptionChecksumException;
+ delete result;
+ return NULL;
+ }
+ return result;
}
-CFX_Int32Array* CBC_PDF417ECErrorCorrection::findErrorMagnitudes(CBC_PDF417ECModulusPoly* errorEvaluator, CBC_PDF417ECModulusPoly* errorLocator, CFX_Int32Array &errorLocations, int32_t &e)
-{
- int32_t errorLocatorDegree = errorLocator->getDegree();
- CFX_Int32Array formalDerivativeCoefficients;
- formalDerivativeCoefficients.SetSize(errorLocatorDegree);
- for (int32_t l = 1; l <= errorLocatorDegree; l++) {
- formalDerivativeCoefficients[errorLocatorDegree - l] = m_field->multiply(l, errorLocator->getCoefficient(l));
+CFX_Int32Array* CBC_PDF417ECErrorCorrection::findErrorMagnitudes(
+ CBC_PDF417ECModulusPoly* errorEvaluator,
+ CBC_PDF417ECModulusPoly* errorLocator,
+ CFX_Int32Array& errorLocations,
+ int32_t& e) {
+ int32_t errorLocatorDegree = errorLocator->getDegree();
+ CFX_Int32Array formalDerivativeCoefficients;
+ formalDerivativeCoefficients.SetSize(errorLocatorDegree);
+ for (int32_t l = 1; l <= errorLocatorDegree; l++) {
+ formalDerivativeCoefficients[errorLocatorDegree - l] =
+ m_field->multiply(l, errorLocator->getCoefficient(l));
+ }
+ CBC_PDF417ECModulusPoly formalDerivative(m_field,
+ formalDerivativeCoefficients, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ int32_t s = errorLocations.GetSize();
+ CFX_Int32Array* result = FX_NEW CFX_Int32Array;
+ result->SetSize(s);
+ for (int32_t i = 0; i < s; i++) {
+ int32_t xiInverse = m_field->inverse(errorLocations[i], e);
+ if (e != BCExceptionNO) {
+ delete result;
+ return NULL;
}
- CBC_PDF417ECModulusPoly formalDerivative(m_field, formalDerivativeCoefficients, e);
- BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
- int32_t s = errorLocations.GetSize();
- CFX_Int32Array* result = FX_NEW CFX_Int32Array;
- result->SetSize(s);
- for (int32_t i = 0; i < s; i++) {
- int32_t xiInverse = m_field->inverse(errorLocations[i], e);
- if (e != BCExceptionNO) {
- delete result;
- return NULL;
- }
- int32_t numerator = m_field->subtract(0, errorEvaluator->evaluateAt(xiInverse));
- int32_t denominator = m_field->inverse(formalDerivative.evaluateAt(xiInverse), e);
- if (e != BCExceptionNO) {
- delete result;
- return NULL;
- }
- result->SetAt(i, m_field->multiply(numerator, denominator));
+ int32_t numerator =
+ m_field->subtract(0, errorEvaluator->evaluateAt(xiInverse));
+ int32_t denominator =
+ m_field->inverse(formalDerivative.evaluateAt(xiInverse), e);
+ if (e != BCExceptionNO) {
+ delete result;
+ return NULL;
}
- return result;
+ result->SetAt(i, m_field->multiply(numerator, denominator));
+ }
+ return result;
}
|