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SCATMECH > Classes and Functions >
Utility > User
interface functions
User interface functions
A set of functions which aid the programmer in querying the
user for values.
Include files:
#include "askuser.h"
Source code:
askuser.cpp
See also:
SCATMECH Home,
Console Interface
Definition of functions:
template TYPE AskUser(const std::string& prompt, const TYPE& deflt );
string AskUser(const std::string& prompt, const char* deflt);
void SCATMECH_set_istream(istream& is);
void SCATMECH_set_ostream(ostream& os);
These functions send the character string
query to the output stream (which, by default, is cerr) and wait
for response from the user. If the user types only
"return," the function returns the default value deflt.
Otherwise, it returns the value typed in by the
user.
Any data type TYPE may be used, provided that the binary operators << and >> are defined
for the input and output streams. Thus, TYPE can be dielectric_function or
Table.
Example:
double thetai = AskUser("Incident angle",45.);
int npoints = AskUser("Number of points",100);
string options = AskUser("Enter options","AB");
dielectric_function df = AskUser("Optical constant of substrate",dielectric_function(17.22,0.415));
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The above functions AskUser use a
predefined input stream and output stream. By default, these are cin, and
cerr, which are
adequate for simple console routines. However, it may be
useful for some routines to use different
iostreams. These function can be used to set these functions differently.
Example:
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For More Information
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Current SCATMECH version: 7.22 (April 2021)
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