Thread-safe replacement for std::gmtime

! v = buf * 10^decimal_exponent len is the length of the buffer (number of decimal digits) The buffer must be large enough, i.e. >= max_digits10. */

! Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+. M- and M+ must be normalized and share the same exponent -60 <= e <= -32. */

Generates output using Grisu2 digit-gen algorithm.

Detrmine if the terminal attached Source: https://github.com/agauniyal/rang/

The size of a sample when doing inner RANSAC on a non-minimal sample

Enable a quick check to see if the model is valid. This can be a geometric check or some other verification of the model structure.

A function to decide if the selected sample is degenerate or not before calculating the model parameters

Determine if the terminal supports colors Source: https://github.com/agauniyal/rang/

check the distance between landmark and camera is in scale variance

check the distance between landmark and camera is in ORB scale variance

! @brief return whether value is a number This function returns true if and only if the JSON value is a number. This includes both intege

why outlier has level of edge 1?

Thread-safe replacement for std::localtime

matching function */

FW:

! @brief returns the maximum possible number of elements Returns the maximum number of elements a JSON value is able to hold due to syste

The size of a minimal sample_ required for the estimation

FW: around 4 ms for tracking

The size of a non-minimal sample required for the estimation

return nomalized normal

These are not implemented because durations don't have date information.