OpenBLAS/utest/test_extensions/test_scamax.c

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#include "utest/openblas_utest.h"
#include <cblas.h>

#define ELEMENTS 70
#define INCREMENT 2

#ifdef BUILD_COMPLEX

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, bad_args_N_0){
   blasint i;
   blasint N = 0, inc = 1;
   float x[ELEMENTS * 2];
   for (i = 0; i < ELEMENTS * inc * 2; i ++) {
      x[i] = 1000 - i;
   }
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, step_zero){
   blasint i;
   blasint N = ELEMENTS * 2, inc = 0;
   float x[ELEMENTS * 2];
   for (i = 0; i < N; i ++) {
      x[i] = i + 1000;
   }
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL((x[0] + x[1]), amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_1_N_1){
   blasint N = 1, inc = 1;
   float x[] = {1.0f, 2.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_1_N_1){
   blasint N = 1, inc = 1;
   float x[] = {-1.0f, -2.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_2_N_1){
   blasint N = 1, inc = 2;
   float x[] = {1.0f, 2.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_2_N_1){
   blasint N = 1, inc = 2;
   float x[] = {-1.0f, -2.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_1_N_2){
   blasint N = 2, inc = 1;
   float x[] = {1.0f, 2.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_1_N_2){
   blasint N = 2, inc = 1;
   float x[] = {-1.0f, -2.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_2_N_2){
   blasint N = 2, inc = 2;
   float x[] = {1.0f, 2.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_2_N_2){
   blasint N = 2, inc = 2;
   float x[] = {-1.0f, -2.0f, 0.0f, 0.0f, -1.0f, -1.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_1_N_3){
   blasint N = 3, inc = 1;
   float x[] = {1.0f, 2.0f, 0.0f, 0.0f, 2.0f, 1.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_1_N_3){
   blasint N = 3, inc = 1;
   float x[] = {-1.0f, -2.0f, 0.0f, 0.0f, -3.0f, -1.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(4.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_2_N_3){
   blasint N = 3, inc = 2;
   float x[] = {1.0f, 2.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 3.0f, 1.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(4.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_2_N_3){
   blasint N = 3, inc = 2;
   float x[] = {-1.0f, -2.0f, 0.0f, 0.0f, -1.0f, -1.0f, 0.0f, 0.0f, -3.0f, -1.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(4.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_1_N_4){
   blasint N = 4, inc = 1;
   float x[] = {1.0f, 2.0f, 0.0f, 0.0f, 2.0f, 1.0f, -2.0f, -2.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(4.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_1_N_4){
   blasint N = 4, inc = 1;
   float x[] = {-1.0f, -2.0f, 0.0f, 0.0f, -2.0f, -1.0f, -2.0f, -2.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(4.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_2_N_4){
   blasint N = 4, inc = 2;
   float x[] = {1.0f, 2.0f, 0.0f, 0.0f, 1.0f, 1.0f, 0.0f, 0.0f, 2.0f, 1.0f, 0.0f, 0.0f, -2.0f, -2.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(4.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_2_N_4){
   blasint N = 4, inc = 2;
   float x[] = {-1.0f, -2.0f, 0.0f, 0.0f, -1.0f, -1.0f, 0.0f, 0.0f, -2.0f, -1.0f, 0.0f, 0.0f, -2.0f, -2.0f, 0.0f, 0.0f};
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(4.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_1_N_70){
   blasint i;
   blasint N = ELEMENTS, inc = 1;
   float x[ELEMENTS * 2];
   for (i = 0; i < N * inc * 2; i ++) {
      x[i] = i;
   }
   x[7 * inc * 2] = 1000.0f;
   x[7 * inc * 2 + 1] = 1000.0f;
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2000.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_1_N_70){
   blasint i;
   blasint N = ELEMENTS, inc = 1;
   float x[ELEMENTS * 2];
   for (i = 0; i < N * inc * 2; i ++) {
      x[i] = -i;
   }
   x[7 * inc * 2] = 1000.0f;
   x[7 * inc * 2 + 1] = 1000.0f;
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2000.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, positive_step_2_N_70){
   blasint i;
   blasint N = ELEMENTS, inc = INCREMENT;
   float x[ELEMENTS * INCREMENT * 2];
   for (i = 0; i < N * inc * 2; i ++) {
      x[i] = i;
   }
   x[7 * inc * 2] = 1000.0f;
   x[7 * inc * 2 + 1] = 1000.0f;
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2000.0f, amax, SINGLE_EPS);
}

/**
 * Test scamax by comparing it against pre-calculated values
 */
CTEST(scamax, negative_step_2_N_70){
   blasint i;
   blasint N = ELEMENTS, inc = INCREMENT;
   float x[ELEMENTS * INCREMENT * 2];
   for (i = 0; i < N * inc * 2; i ++) {
      x[i] = -i;
   }
   x[7 * inc * 2] = 1000.0f;
   x[7 * inc * 2 + 1] = 1000.0f;
   float amax = BLASFUNC(scamax)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2000.0f, amax, SINGLE_EPS);
}
#endif