A Collection of Array Indexing Functions¶

Array Indexing

Include index and index_a

index¶

Description¶

@index(x,k)

x[k]: fetch value from x with a given index k

Type Rules¶

Table with details (See type alias)

index

Examples¶

    @index((-1,2,3):i32,(2,1):i32)
(3,2):i32

index_a¶

@index_a(x,k,m)

is equivalent to x[k]=m
returns the same type of m

Type Rules¶

Basic types (x,k,m -> x)

bool   , Int , bool 
i8     , Int , (bool|i8)
i16    , Int , (bool|i8|i16)
i32    , Int , (bool|i8|i16|i32)
i64    , Int , (bool|i8|i16|i32|i64)
f32    , Int , (bool|i8|i16|i32|i64|f32)
f64    , Int , (bool|i8|i16|i32|i64|f32|f64)
complex, Int , (bool|i8|i16|i32|i64|f32|f64|complex)
char   , Int , char
str    , Int , str    
sym    , Int , sym    
month  , Int , month  
date   , Int , date   
dt     , Int , dt     
minute , Int , minute 
second , Int , second 
time   , Int , time

Note:

Think about indexing with lists.
IndexA can't be parallelized because of the duplicated values of the array indices

Examples¶

    x:i32 = (-1,2,3):i32
    @index_a(x,(2,1):i32,0:i32)
> (-1,0,0):i32  // value: x