Defined in header <ctl/numeric.h>, requested via #define INCLUDE_NUMERIC.
#define T int
#define N 20
#define INCLUDE_NUMERIC
#include <ctl/array.h>
arr20_double_iota (&a, 0);
The numerics library includes common mathematical functions and types, as
well as optimized numeric arrays and support for random number generation.
It is only included when you define INCLUDE_NUMERIC before loading the container.
iota (A* self, T value)
iota_range (I* range, T value)
fills a range with successive increments of the starting value. When T is a
struct, you need to define a T_inc postfix increment method, as in tests/func/digi.hh,
returning an old copy:
static digi
digi_inc(digi* a)
{
digi old = digi_init(*a->value);
(*a->value)++;
return old;
}
equivalent to the matching C++ postfix increment operator:
DIGI operator++(int)
{
DIGI old = *this;
(*value)++;
return old;
}
accumulate
sums up a range of elements.
inner_product
computes the inner product of two ranges of elements.
adjacent_difference
computes the differences between adjacent elements in a range.
partial_sum
computes the partial sum of a range of elements.
reduce (C++17)
similar to std::accumulate, except out of order.
exclusive_scan (C++17)
similar to partial_sum, excludes the ith input element from the i-th sum.
inclusive_scan (C++17)
similar to partial_sum, includes the ith input element in the i-th sum.
transform_reduce (C++17)
applies an invocable, then reduces out of order.
transform_exclusive_scan (C++17)
applies an invocable, then calculates exclusive scan.
transform_inclusive_scan (C++17)
applies an invocable, then calculates inclusive scan.