openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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/*
* Copyright (c) The acados authors.
*
* This file is part of acados.
*
* The 2-Clause BSD License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.;
*/
#ifndef ACADOS_UTILS_MATH_H_
#define ACADOS_UTILS_MATH_H_
#ifdef __cplusplus
extern "C" {
#endif
#include "acados/utils/types.h"
#if defined(__MABX2__)
double fmax(double a, double b);
int isnan(double x);
#endif
#define MIN(a,b) (((a)<(b))?(a):(b))
#define MAX(a,b) (((a)>(b))?(a):(b))
void dgemm_nn_3l(int m, int n, int k, double *A, int lda, double *B, int ldb, double *C, int ldc);
// void dgemv_n_3l(int m, int n, double *A, int lda, double *x, double *y);
// void dgemv_t_3l(int m, int n, double *A, int lda, double *x, double *y);
// void dcopy_3l(int n, double *x, int incx, double *y, int incy);
void daxpy_3l(int n, double da, double *dx, double *dy);
void dscal_3l(int n, double da, double *dx);
double twonormv(int n, double *ptrv);
/* copies a matrix into another matrix */
void dmcopy(int row, int col, double *ptrA, int lda, double *ptrB, int ldb);
/* solution of a system of linear equations */
void dgesv_3l(int n, int nrhs, double *A, int lda, int *ipiv, double *B, int ldb, int *info);
/* matrix exponential */
void expm(int row, double *A);
int idamax_3l(int n, double *x);
void dswap_3l(int n, double *x, int incx, double *y, int incy);
void dger_3l(int m, int n, double alpha, double *x, int incx, double *y, int incy, double *A,
int lda);
void dgetf2_3l(int m, int n, double *A, int lda, int *ipiv, int *info);
void dlaswp_3l(int n, double *A, int lda, int k1, int k2, int *ipiv);
void dtrsm_l_l_n_u_3l(int m, int n, double *A, int lda, double *B, int ldb);
void dgetrs_3l(int n, int nrhs, double *A, int lda, int *ipiv, double *B, int ldb);
void dgesv_3l(int n, int nrhs, double *A, int lda, int *ipiv, double *B, int ldb, int *info);
double onenorm(int row, int col, double *ptrA);
// double twonormv(int n, double *ptrv);
void padeapprox(int m, int row, double *A);
void expm(int row, double *A);
// void d_compute_qp_size_ocp2dense_rev(int N, int *nx, int *nu, int *nb, int **hidxb, int *ng,
// int *nvd, int *ned, int *nbd, int *ngd);
void acados_eigen_decomposition(int dim, double *A, double *V, double *d, double *e);
double minimum_of_doubles(double *x, int n);
void neville_algorithm(double xx, int n, double *x, double *Q, double *out);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif // ACADOS_UTILS_MATH_H_