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@@ -7,46 +7,72 @@
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namespace SCTL_NAMESPACE {
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-template <> inline unsigned int pow(const unsigned int b, const unsigned int e) {
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- unsigned int r = 1;
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- for (unsigned int i = 0; i < e; i++) r *= b;
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- return r;
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-}
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-}
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+template <class Real> inline Real atoreal(const char* str) { // Warning: does not do correct rounding
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+ int i = 0;
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+ Real sign = 1.0;
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+ for (; str[i] != '\0'; i++) {
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+ char c = str[i];
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+ if (c == '-') sign = -sign;
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+ if (c >= '0' && c <= '9') break;
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+ }
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-#ifdef SCTL_QUAD_T
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+ Real val = 0.0;
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+ for (; str[i] != '\0'; i++) {
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+ char c = str[i];
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+ if (c >= '0' && c <= '9')
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+ val = val * 10 + (c - '0');
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+ else
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+ break;
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+ }
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-namespace SCTL_NAMESPACE {
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+ if (str[i] == '.') {
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+ i++;
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+ Real exp = 1.0;
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+ exp /= 10;
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+ for (; str[i] != '\0'; i++) {
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+ char c = str[i];
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+ if (c >= '0' && c <= '9')
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+ val = val + (c - '0') * exp;
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+ else
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+ break;
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+ exp /= 10;
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+ }
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+ }
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-template <> inline QuadReal const_pi<QuadReal>() {
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- static QuadReal pi = atoquad("3.1415926535897932384626433832795028841");
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+ return sign * val;
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+}
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+
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+template <class Real> inline Real const_pi_generic() {
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+ static Real pi = atoreal<Real>("3.1415926535897932384626433832795028841");
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return pi;
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}
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-template <> inline QuadReal const_e<QuadReal>() {
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- static QuadReal e = atoquad("2.7182818284590452353602874713526624977");
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+template <class Real> inline Real const_e_generic() {
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+ static Real e = atoreal<Real>("2.7182818284590452353602874713526624977");
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return e;
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}
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-template <> inline QuadReal fabs(const QuadReal f) {
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- if (f >= 0.0)
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- return f;
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+template <class Real> inline Real fabs_generic(const Real a) {
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+ if (a >= 0.0)
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+ return a;
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else
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- return -f;
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+ return -a;
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}
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-template <> inline QuadReal sqrt(const QuadReal a) {
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- QuadReal b = ::sqrt((double)a);
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- b = (b + a / b) * 0.5;
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- b = (b + a / b) * 0.5;
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+template <class Real> inline Real sqrt_generic(const Real a) {
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+ Real b = ::sqrt((double)a);
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+ if (a > 0) {
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+ b = (b + a / b) * 0.5;
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+ b = (b + a / b) * 0.5;
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+ }
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return b;
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}
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-template <> inline QuadReal sin(const QuadReal a) {
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+template <class Real> inline Real sin_generic(const Real a) {
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const int N = 200;
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- static std::vector<QuadReal> theta;
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- static std::vector<QuadReal> sinval;
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- static std::vector<QuadReal> cosval;
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+ static std::vector<Real> theta;
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+ static std::vector<Real> sinval;
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+ static std::vector<Real> cosval;
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if (theta.size() == 0) {
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#pragma omp critical(QUAD_SIN)
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if (theta.size() == 0) {
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@@ -54,7 +80,7 @@ template <> inline QuadReal sin(const QuadReal a) {
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sinval.resize(N);
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cosval.resize(N);
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- QuadReal t = 1.0;
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+ Real t = 1.0;
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for (int i = 0; i < N; i++) {
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theta[i] = t;
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t = t * 0.5;
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@@ -64,18 +90,18 @@ template <> inline QuadReal sin(const QuadReal a) {
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cosval[N - 1] = 1.0 - sinval[N - 1] * sinval[N - 1] / 2;
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for (int i = N - 2; i >= 0; i--) {
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sinval[i] = 2.0 * sinval[i + 1] * cosval[i + 1];
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- cosval[i] = sqrt<QuadReal>(1.0 - sinval[i] * sinval[i]);
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+ cosval[i] = sqrt<Real>(1.0 - sinval[i] * sinval[i]);
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}
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}
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}
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- QuadReal t = (a < 0.0 ? -a : a);
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- QuadReal sval = 0.0;
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- QuadReal cval = 1.0;
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+ Real t = (a < 0.0 ? -a : a);
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+ Real sval = 0.0;
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+ Real cval = 1.0;
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for (int i = 0; i < N; i++) {
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while (theta[i] <= t) {
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- QuadReal sval_ = sval * cosval[i] + cval * sinval[i];
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- QuadReal cval_ = cval * cosval[i] - sval * sinval[i];
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+ Real sval_ = sval * cosval[i] + cval * sinval[i];
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+ Real cval_ = cval * cosval[i] - sval * sinval[i];
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sval = sval_;
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cval = cval_;
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t = t - theta[i];
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@@ -84,11 +110,11 @@ template <> inline QuadReal sin(const QuadReal a) {
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return (a < 0.0 ? -sval : sval);
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}
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-template <> inline QuadReal cos(const QuadReal a) {
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+template <class Real> inline Real cos_generic(const Real a) {
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const int N = 200;
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- static std::vector<QuadReal> theta;
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- static std::vector<QuadReal> sinval;
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- static std::vector<QuadReal> cosval;
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+ static std::vector<Real> theta;
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+ static std::vector<Real> sinval;
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+ static std::vector<Real> cosval;
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if (theta.size() == 0) {
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#pragma omp critical(QUAD_COS)
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if (theta.size() == 0) {
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@@ -96,7 +122,7 @@ template <> inline QuadReal cos(const QuadReal a) {
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sinval.resize(N);
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cosval.resize(N);
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- QuadReal t = 1.0;
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+ Real t = 1.0;
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for (int i = 0; i < N; i++) {
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theta[i] = t;
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t = t * 0.5;
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@@ -106,18 +132,18 @@ template <> inline QuadReal cos(const QuadReal a) {
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cosval[N - 1] = 1.0 - sinval[N - 1] * sinval[N - 1] / 2;
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for (int i = N - 2; i >= 0; i--) {
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sinval[i] = 2.0 * sinval[i + 1] * cosval[i + 1];
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- cosval[i] = sqrt<QuadReal>(1.0 - sinval[i] * sinval[i]);
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+ cosval[i] = sqrt<Real>(1.0 - sinval[i] * sinval[i]);
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}
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}
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}
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- QuadReal t = (a < 0.0 ? -a : a);
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- QuadReal sval = 0.0;
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- QuadReal cval = 1.0;
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+ Real t = (a < 0.0 ? -a : a);
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+ Real sval = 0.0;
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+ Real cval = 1.0;
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for (int i = 0; i < N; i++) {
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while (theta[i] <= t) {
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- QuadReal sval_ = sval * cosval[i] + cval * sinval[i];
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- QuadReal cval_ = cval * cosval[i] - sval * sinval[i];
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+ Real sval_ = sval * cosval[i] + cval * sinval[i];
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+ Real cval_ = cval * cosval[i] - sval * sinval[i];
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sval = sval_;
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cval = cval_;
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t = t - theta[i];
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@@ -126,12 +152,12 @@ template <> inline QuadReal cos(const QuadReal a) {
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return cval;
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}
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-template <> inline QuadReal exp(const QuadReal a) {
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+template <class Real> inline Real exp_generic(const Real a) {
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const int N = 200;
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- static std::vector<QuadReal> theta0;
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- static std::vector<QuadReal> theta1;
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- static std::vector<QuadReal> expval0;
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- static std::vector<QuadReal> expval1;
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+ static std::vector<Real> theta0;
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+ static std::vector<Real> theta1;
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+ static std::vector<Real> expval0;
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+ static std::vector<Real> expval1;
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if (theta0.size() == 0) {
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#pragma omp critical(QUAD_EXP)
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if (theta0.size() == 0) {
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@@ -142,19 +168,19 @@ template <> inline QuadReal exp(const QuadReal a) {
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theta0[0] = 1.0;
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theta1[0] = 1.0;
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- expval0[0] = const_e<QuadReal>();
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- expval1[0] = const_e<QuadReal>();
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+ expval0[0] = const_e<Real>();
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+ expval1[0] = const_e<Real>();
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for (int i = 1; i < N; i++) {
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theta0[i] = theta0[i - 1] * 0.5;
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theta1[i] = theta1[i - 1] * 2.0;
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- expval0[i] = sqrt<QuadReal>(expval0[i - 1]);
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+ expval0[i] = sqrt<Real>(expval0[i - 1]);
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expval1[i] = expval1[i - 1] * expval1[i - 1];
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}
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}
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}
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- QuadReal t = (a < 0.0 ? -a : a);
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- QuadReal eval = 1.0;
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+ Real t = (a < 0.0 ? -a : a);
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+ Real eval = 1.0;
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for (int i = N - 1; i > 0; i--) {
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while (theta1[i] <= t) {
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eval = eval * expval1[i];
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@@ -171,60 +197,23 @@ template <> inline QuadReal exp(const QuadReal a) {
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return (a < 0.0 ? 1.0 / eval : eval);
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}
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-template <> inline QuadReal log(const QuadReal a) {
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- QuadReal y0 = ::log((double)a);
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- y0 = y0 + (a / exp<QuadReal>(y0) - 1.0);
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- y0 = y0 + (a / exp<QuadReal>(y0) - 1.0);
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+template <class Real> inline Real log_generic(const Real a) {
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+ Real y0 = ::log((double)a);
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+ y0 = y0 + (a / exp<Real>(y0) - 1.0);
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+ y0 = y0 + (a / exp<Real>(y0) - 1.0);
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return y0;
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}
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-template <> inline QuadReal pow(const QuadReal b, const QuadReal e) {
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+template <class Real> inline Real pow_generic(const Real b, const Real e) {
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if (b == 0) return 1;
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- return exp<QuadReal>(log<QuadReal>(b) * e);
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+ return exp<Real>(log<Real>(b) * e);
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}
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-inline QuadReal atoquad(const char* str) {
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- int i = 0;
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- QuadReal sign = 1.0;
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- for (; str[i] != '\0'; i++) {
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- char c = str[i];
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- if (c == '-') sign = -sign;
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- if (c >= '0' && c <= '9') break;
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- }
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-
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- QuadReal val = 0.0;
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- for (; str[i] != '\0'; i++) {
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- char c = str[i];
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- if (c >= '0' && c <= '9')
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- val = val * 10 + (c - '0');
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- else
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- break;
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- }
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-
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- if (str[i] == '.') {
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- i++;
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- QuadReal exp = 1.0;
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- exp /= 10;
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- for (; str[i] != '\0'; i++) {
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- char c = str[i];
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- if (c >= '0' && c <= '9')
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- val = val + (c - '0') * exp;
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- else
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- break;
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- exp /= 10;
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- }
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- }
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-
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- return sign * val;
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-}
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-
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-} // end namespace
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-
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-inline std::ostream& operator<<(std::ostream& output, const SCTL_NAMESPACE::QuadReal q_) {
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+template <class Real> inline std::ostream& ostream_insertion_generic(std::ostream& output, const Real q_) {
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// int width=output.width();
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output << std::setw(1);
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- SCTL_NAMESPACE::QuadReal q = q_;
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+ Real q = q_;
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if (q < 0.0) {
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output << "-";
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q = -q;
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@@ -237,7 +226,7 @@ inline std::ostream& operator<<(std::ostream& output, const SCTL_NAMESPACE::Quad
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}
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int exp = 0;
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- static const SCTL_NAMESPACE::QuadReal ONETENTH = (SCTL_NAMESPACE::QuadReal)1 / 10;
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+ static const Real ONETENTH = (Real)1 / 10;
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while (q < 1.0 && abs(exp) < 10000) {
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q = q * 10;
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exp--;
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@@ -263,4 +252,68 @@ inline std::ostream& operator<<(std::ostream& output, const SCTL_NAMESPACE::Quad
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return output;
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}
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+} // end namespace
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+
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+namespace SCTL_NAMESPACE {
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+
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+//template <> inline long double const_pi<long double>() { return const_pi_generic<long double>(); }
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+
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+//template <> inline long double const_e<long double>() { return const_e_generic<long double>(); }
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+
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+template <> inline long double fabs<long double>(const long double a) { return fabs_generic(a); }
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+
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+template <> inline long double sqrt<long double>(const long double a) { return sqrt_generic(a); }
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+
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+template <> inline long double sin<long double>(const long double a) { return sin_generic(a); }
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+
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+template <> inline long double cos<long double>(const long double a) { return cos_generic(a); }
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+
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+template <> inline long double exp<long double>(const long double a) { return exp_generic(a); }
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+
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+//template <> inline long double log<long double>(const long double a) { return log_generic(a); }
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+
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+//template <> inline long double pow<long double>(const long double b, const long double e) { return pow_generic(b, e); }
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+
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+} // end namespace
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+
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+#ifdef SCTL_QUAD_T
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+
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+namespace SCTL_NAMESPACE {
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+
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+template <> inline QuadReal const_pi<QuadReal>() { return const_pi_generic<QuadReal>(); }
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+
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+template <> inline QuadReal const_e<QuadReal>() { return const_e_generic<QuadReal>(); }
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+
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+template <> inline QuadReal fabs<QuadReal>(const QuadReal a) { return fabs_generic(a); }
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+
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+template <> inline QuadReal sqrt<QuadReal>(const QuadReal a) { return sqrt_generic(a); }
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+
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+template <> inline QuadReal sin<QuadReal>(const QuadReal a) { return sin_generic(a); }
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+
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+template <> inline QuadReal cos<QuadReal>(const QuadReal a) { return cos_generic(a); }
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+
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+template <> inline QuadReal exp<QuadReal>(const QuadReal a) { return exp_generic(a); }
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+
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+template <> inline QuadReal log<QuadReal>(const QuadReal a) { return log_generic(a); }
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+
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+template <> inline QuadReal pow<QuadReal>(const QuadReal b, const QuadReal e) { return pow_generic(b, e); }
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+
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+inline std::ostream& operator<<(std::ostream& output, const QuadReal q) { ostream_insertion_generic(output, q); }
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+
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+} // end namespace
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+
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+inline std::ostream& operator<<(std::ostream& output, const SCTL_QUAD_T q) { SCTL_NAMESPACE::ostream_insertion_generic(output, q); }
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+
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#endif // SCTL_QUAD_T
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+
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+
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+
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+
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+
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+//namespace SCTL_NAMESPACE {
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+//template <class Real> inline unsigned int pow(const unsigned int b, const unsigned int e) {
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+// unsigned int r = 1;
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+// for (unsigned int i = 0; i < e; i++) r *= b;
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+// return r;
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+//}
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+//}
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