This group contains several useful tools for development, debugging and testing.
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file | arg_parser.h |
| A tool to parse command line arguments.
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file | color.h |
| Tools to manage RGB colors.
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file | math.h |
| Some extensions to the standard cmath library.
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file | random.h |
| Mersenne Twister random number generator.
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file | tolerance.h |
| A basic tool to handle the anomalies of calculation with floating point numbers.
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file | test_tools.h |
| Some utilities to write test programs.
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Color | distantColor (const Color &c) |
| Returns a visibly distinct Color.
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Color | distantBW (const Color &c) |
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bool | isNaN (double v) |
| Check whether the parameter is NaN or not.
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const Color | WHITE (1, 1, 1) |
| White color constant.
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const Color | BLACK (0, 0, 0) |
| Black color constant.
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const Color | RED (1, 0, 0) |
| Red color constant.
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const Color | GREEN (0, 1, 0) |
| Green color constant.
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const Color | BLUE (0, 0, 1) |
| Blue color constant.
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const Color | YELLOW (1, 1, 0) |
| Yellow color constant.
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const Color | MAGENTA (1, 0, 1) |
| Magenta color constant.
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const Color | CYAN (0, 1, 1) |
| Cyan color constant.
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const Color | GREY (0, 0, 0) |
| Grey color constant.
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const Color | DARK_RED (.5, 0, 0) |
| Dark red color constant.
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const Color | DARK_GREEN (0,.5, 0) |
| Dark green color constant.
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const Color | DARK_BLUE (0, 0,.5) |
| Drak blue color constant.
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const Color | DARK_YELLOW (.5,.5, 0) |
| Dark yellow color constant.
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const Color | DARK_MAGENTA (.5, 0,.5) |
| Dark magenta color constant.
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const Color | DARK_CYAN (0,.5,.5) |
| Dark cyan color constant.
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const long double | E = 2.7182818284590452353602874713526625L |
| The Euler constant.
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const long double | LOG2E = 1.4426950408889634073599246810018921L |
| log_2(e)
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const long double | LOG10E = 0.4342944819032518276511289189166051L |
| log_10(e)
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const long double | LN2 = 0.6931471805599453094172321214581766L |
| ln(2)
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const long double | LN10 = 2.3025850929940456840179914546843642L |
| ln(10)
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const long double | PI = 3.1415926535897932384626433832795029L |
| pi
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const long double | PI_2 = 1.5707963267948966192313216916397514L |
| pi/2
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const long double | PI_4 = 0.7853981633974483096156608458198757L |
| pi/4
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const long double | SQRT2 = 1.4142135623730950488016887242096981L |
| sqrt(2)
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const long double | SQRT1_2 = 0.7071067811865475244008443621048490L |
| 1/sqrt(2)
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Color lemon::distantColor |
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const Color & |
c | ) |
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inline |
Returns a Color which is as different from the given parameter as it is possible.
Color lemon::distantBW |
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const Color & |
c | ) |
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inline |
Returns black for light colors and white for the dark ones.
bool lemon::isNaN |
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double |
v | ) |
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inline |
This function checks whether the parameter is NaN or not. Is should be equivalent with std::isnan(), but it is not provided by all compilers.