OpenBLAS/utest/test_extensions/test_scamin.c

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

#define ELEMENTS 70
#define INCREMENT 2

#ifdef BUILD_COMPLEX

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, step_zero){
   blasint i;
   blasint N = ELEMENTS * 2, inc = 0;
   float x[ELEMENTS * 2];
   for (i = 0; i < N; i ++) {
      x[i] = i - 1000;
   }
   x[8] = 0.0f;
   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL((fabsf(x[0]) + fabsf(x[1])), amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, positive_step_1_N_1){
   blasint N = 1, inc = 1;
   float x[] = {1.0f, 2.0f};

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, negative_step_1_N_1){
   blasint N = 1, inc = 1;
   float x[] = {-1.0f, -2.0f};

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amin, SINGLE_EPS);
}

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

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amin, SINGLE_EPS);
}

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

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(3.0f, amin, SINGLE_EPS);
}

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

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

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

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, negative_step_1_N_3){
   blasint N = 3, inc = 1;
   float x[] = {-1.0f, -2.0f, 0.0f, 0.0f, -2.0f, -1.0f};

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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, 2.0f, 1.0f, 0.0f, 0.0f};

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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, -2.0f, -1.0f, 0.0f, 0.0f};

   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(2.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 + 1000;
   }
   x[7 * inc * 2] = 0.0f;
   x[7 * inc * 2 + 1] = 0.0f;
   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 - 1000;
   }
   x[7 * inc * 2] = 0.0f;
   x[7 * inc * 2 + 1] = 0.0f;
   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 + 1000;
   }
   x[7 * inc * 2] = 0.0f;
   x[7 * inc * 2 + 1] = 0.0f;
   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}

/**
 * Test scamin by comparing it against pre-calculated values
 */
CTEST(scamin, 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 - 1000;
   }
   x[7 * inc * 2] = 0.0f;
   x[7 * inc * 2 + 1] = 0.0f;
   float amin = BLASFUNC(scamin)(&N, x, &inc);
   ASSERT_DBL_NEAR_TOL(0.0f, amin, SINGLE_EPS);
}
#endif