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sci_types
a C enumeration which defines the types available for a variable
Description
A C enumeration which defines the types available for a variable. You must include stack-c.h to benefit from this type definition.
The list of available types is the following:
1 - sci_matrix: a matrix of doubles
2 - sci_poly: a polynomials matrix
4 - sci_boolean: a boolean matrix
5 - sci_sparse: a sparse matrix
6 - sci_boolean_sparse: a sparse boolean matrix
7 - sci_matlab_sparse: a sparse matlab matrix
8 - sci_ints: a matrix of integers
9 - sci_handles: a graphical handle
10 - sci_strings: a matrix of strings
11 - sci_u_function: an uncompiled Scilab function
13 - sci_c_function: a compiled Scilab function
14 - sci_lib: a library of Scilab functions
15 - sci_list: a Scilab list
16 - sci_tlist: a Scilab tlist
17 - sci_mlist: a Scilab mlist
18 - sci_struct: a Scilab struct
19 - sci_cell: a Scilab cell
128 - sci_pointer (was: sci_lufact_pointer before Scilab 5.2): a pointer
Integers or enumeration types can be used to check the type of the variables. Using the enumeration type is recommended because of the explicit meaning of the value of the enumeration type.
Examples
In this example, the C gateway function takes one argument. Through a switch case structure, we display the type of the variable sent as a parameter.
#include "api_scilab.h" #include "sciprint.h" int sci_mysci_typesrhs(char * fname, void* pvApiCtx) { int iType = 0; int* piAddr = NULL; SciErr sciErr; sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr); if(sciErr.iErr) { printError(&sciErr, 0); return 1; } sciErr = getVarType(pvApiCtx, piAddr, &iType); if(sciErr.iErr) { printError(&sciErr, 0); return 1; } switch(iType) { case sci_matrix: sciprint("A matrix of doubles\n"); break; case sci_poly: sciprint("A matrix of polynomials\n"); break; case sci_boolean: sciprint("A matrix of booleans\n"); break; case sci_sparse: sciprint("A sparse matrix of doubles\n"); break; case sci_boolean_sparse: sciprint("A sparse matrix of booleans\n"); break; case sci_matlab_sparse: sciprint("A sparse matlab matrix\n"); break; case sci_ints: sciprint("A matrix of integers\n"); break; case sci_handles: sciprint("A graphic handle\n"); break; case sci_strings: sciprint("A matrix of strings\n"); break; case sci_u_function: sciprint("An uncompiled Scilab function\n"); break; case sci_c_function: sciprint("A compiled Scilab function\n"); break; case sci_lib: sciprint("A library of Scilab functions\n"); break; case sci_list: sciprint("A Scilab list\n"); break; case sci_tlist: sciprint("A Scilab tlist\n"); break; case sci_mlist: sciprint("A Scilab mlist\n"); break; case sci_pointer: sciprint("A pointer\n"); break; default: sciprint("Unknown type !\n"); // Should never happen } return 0; }
See also
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