@spiceErrorCheck<EOL>def lstltd(x, n, array):
array = stypes.toDoubleVector(array)<EOL>x = ctypes.c_double(x)<EOL>n = ctypes.c_int(n)<EOL>return libspice.lstltd_c(x, n, array)<EOL>
Given a number x and an array of non-decreasing floats
find the index of the largest array element less than x.

http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/lstltd_c.html

:param x: Value to search against
:type x: float
:param n: Number elements in array
:type n: int
:param array: Array of possible lower bounds
:type array: list
:return: index of the last element of array that is less than x.
:rtype: int