API double functions
This page lists all the functions to manipulate Scilab native objects containing doubles.
scilabVar
scilab_createDoubleMatrix(
scilabEnv
env, int dim, const int* dims, int complex)Create a double matrix with dim dimensions (dims[0], dims[1], ..., dims[dim-1]).
complex: 0 to real matrix or 1 to complex matrix
scilabVar
scilab_createDoubleMatrix2d(
scilabEnv
env, int row, int col, int complex)Create a double matrix with 2 dimensions (row, col).
complex: 0 to real matrix or 1 to complex matrix
scilabVar
scilab_createDoubleComplex(
scilabEnv
env, double real, double img)Create a scalar complex double.
scilabStatus
scilab_getDoubleArray(
scilabEnv
env,
scilabVar
var, double** real)Get pointer on internal array of double of var.
scilabStatus
scilab_getDoubleComplexArray(
scilabEnv
env,
scilabVar
var, double** real, double** img)Get pointers on internal arrays of double of var.
scilabStatus
scilab_getDouble(
scilabEnv
env,
scilabVar
var, double* real)Get double value from an scalar double variable.
scilabStatus
scilab_getDoubleComplex(
scilabEnv
env,
scilabVar
var, double* real, double* img)Get double values from an scalar double variable.
scilabStatus
scilab_setDoubleArray(
scilabEnv
env,
scilabVar
var, const double* real)Set values of double variable var.
scilabStatus
scilab_setDoubleComplexArray(
scilabEnv
env,
scilabVar
var, const double* real, const double* img)Set values of complex double variable var.
scilabStatus
scilab_setDouble(
scilabEnv
env,
scilabVar
var, double real)Set value of a scalar double variable var.
scilabStatus
scilab_setDoubleComplex(
scilabEnv
env,
scilabVar
var, double real, double img)Set values of a scalar complex double variable var.
Examples
#include "api_scilab.h" #include "Scierror.h" #include "localization.h" #include "sciprint.h" #include "sci_malloc.h" const char fname[] = "double_test"; int sci_double_test(scilabEnv env, int nin, scilabVar* in, int nopt, scilabOpt opt, int nout, scilabVar* out) { int i = 0; int inr1 = 0; int inc1 = 0; int size1 = 0; double* in1 = NULL; double in2 = 0; double* out1 = NULL; int* out2dims = NULL; double* out2 = NULL; double out3 = 0; if (nin != 2) { Scierror(999, _("%s: Wrong number of input arguments: %d expected.\n"), fname, 2); return SCILAB_ERROR; } if (nout != 3) { Scierror(999, _("%s: Wrong number of output arguments: %d expected.\n"), fname, 3); return SCILAB_ERROR; } //in[0] : matrix 2d of double if (scilab_isDouble(env, in[0]) == 0 || scilab_isMatrix(env, in[0]) == 0) { Scierror(999, _("%s: Wrong type for input argument #%d: A double matrix expected.\n"), fname, 1); return SCILAB_ERROR; } size1 = scilab_getDim2d(env, in[0], &inr1, &inc1); scilab_getDoubleArray(env, in[0], &in1); //in[1] : double if (scilab_isDouble(env, in[1]) == 0 || scilab_isScalar(env, in[1]) == 0) { Scierror(999, _("%s: Wrong type for input argument #%d: A double expected.\n"), fname, 2); return SCILAB_ERROR; } scilab_getDouble(env, in[1], &in2); //out1 : matrix 2d of double with same size of in[0] out[0] = scilab_createDoubleMatrix2d(env, inr1, inc1, 0); scilab_getDoubleArray(env, out[0], &out1); for (i = 0; i < size1; ++i) { out1[i] = in1[i] * 10; } //out2 : 3d matrix of double out2dims = (int*)MALLOC(3 * sizeof(int)); out2dims[0] = inr1; out2dims[1] = inc1; out2dims[2] = 2; out[1] = scilab_createDoubleMatrix(env, 3, out2dims, 0); scilab_getDoubleArray(env, out[1], &out2); for (i = 0; i < size1; ++i) { out2[i] = in1[i] * 10; out2[i + size1] = in1[i] * 100; } //out3 : double out[2] = scilab_createDouble(env, in2 * 1000); return SCILAB_OK; }
Scilab test script
mkdir(pathconvert(TMPDIR+"/api_c/")); cd(pathconvert(TMPDIR+"/api_c/")); copyfile(SCI+"/modules/api_scilab/tests/unit_tests/api_c/double_test.c",pathconvert(TMPDIR+"/api_c/double_test.c",%F)); ilib_build("libdouble", ["double_test","sci_double_test", "csci6"],"double_test.c",[],"","",""); exec("loader.sce"); in1 = rand(3,4); in2 = rand(); [out1, out2, out3] = double_test(in1, in2); assert_checkequal(out1, in1 * 10); ref(:,:, 1) = in1 * 10; ref(:,:, 2) = in1 * 100; assert_checkequal(out2, ref); assert_checkequal(out3, in2 * 1000); disp("OK");
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