iconvert

Arguments

X

a matrix of decimal numbers, encoded integers, or booleans. Complex numbers are not supported.

itype

an integer: conversion code

y

matrix of integers encoded on 1, 2, 4 or 8 bytes, with the sizes of X : y(i) is X(i) converted into the chosen encoding.

Description

The iconvert function converts and stores data to 1, 2, 4 or 8 bytes integers. Please refer to the int8() page for a detailled description.

Converting [] always keeps it as is, of type 1 == inttype 0 (decimal type).

Examples

b=int32([1 -120 127 312])
y=iconvert(b,1)

typeof(b)
typeof(y)

iconvert([-3.6 -2.5 -1.2 1.2 2.5 3.6], 1)
iconvert([-%inf %inf %nan], 1)
iconvert([-%inf %inf %nan], 11)
iconvert(-1, 11)
iconvert(-1, 12)
iconvert(-1, 14)
iconvert(-1, 18)

--> iconvert([-3.6 -2.5 -1.2 1.2 2.5 3.6], 1)
 ans  =
 -3 -2 -1  1  2  3

--> iconvert([-%inf %inf %nan], 1)
 ans  =
 -128  127  0

--> iconvert([-%inf %inf %nan], 11)
 ans  =
  0  255  0

--> iconvert(-1, 11)
 ans  =
  255

--> iconvert(-1, 12)
 ans  =
  65535

--> iconvert(-1, 14)
 ans  =
  4294967295

--> iconvert(-1, 18)
 ans  =
  18446744073709551615

See also

• int8 — conversion to one byte integer representation
• inttype — type integers used in integer data types
• double — converts inttype integers or booleans into decimal encoding
• dec2bin — convert from decimal to binary
• dec2base — Convert decimal to base N number in string

History