OPTUtils.h File Reference

#include <limits>
#include <stdlib.h>
#include <time.h>
#include <iostream>

Go to the source code of this file.

Classes
class	OPTtimers
class	OPTrand

Namespaces
namespace	OPTtypes_di_unipi_it

Macros
#define	__OPTUtils   /* self-identification: #endif at the end of the file */
#define	OPT_TIMERS   5
#define	OPT_RANDOM   1

Functions
template<typename T >
static constexpr T	Inf (void) noexcept
	Inf< T >() = infinity value for T.
template<typename T >
static constexpr T	Eps (void) noexcept
	Eps< T >() = "machine epsilon" for T.
template<class T >
void	DfltdSfInpt (istream *iStrm, T &Param, const T Dflt, const char cmntc='#')

Detailed Description

Small classes are provided for:

• timing of a code;
• generating random numbers;
• extracting "infinity" and "machine epsilon" of numeric types.

The classes can be adapted to different environments (if needed) by setting a compile-time switch in this file.

Additionally, a function is provided for safely reading numbers out of a istream.

Author

Antonio Frangioni
Dipartimento di Informatica
Universita' di Pisa

Copyright

© by Antonio Frangioni