Module Stdint.Uint40
Contents
Instructions: Use this module in your project
In the IDE (CLion, Visual Studio Code, Xcode, etc.) you use for your DkSDK project:
Add the following to your project's
dependencies/CMakeLists.txt
:DkSDKProject_DeclareAvailable(stdint CONSTRAINT "= 0.7.2" FINDLIBS stdint) DkSDKProject_MakeAvailable(stdint)
Add the
Findlib::stdint
library to any desired targets insrc/*/CMakeLists.txt
:target_link_libraries(YourPackage_YourLibraryName # ... existing libraries, if any ... Findlib::stdint)
Click your IDE's
Build
button
Not using DkSDK?
FIRST, do one or all of the following:
Run:
opam install stdint.0.7.2
Edit your
dune-project
and add:(package (name YourExistingPackage) (depends ; ... existing dependenices ... (stdint (>= 0.7.2))))
Then run:
dune build *.opam # if this fails, run: dune build
Edit your
<package>.opam
file and add:depends: [ # ... existing dependencies ... "stdint" {>= "0.7.2"} ]
Then run:
opam install . --deps-only
FINALLY, add the stdint
library to any desired (library)
and/or (executable)
targets in your **/dune
files:
(library
(name YourLibrary)
; ... existing library options ...
(libraries
; ... existing libraries ...
stdint))
(executable
(name YourExecutable)
; ... existing executable options ...
(libraries
; ... existing libraries ...
stdint))
type
t`` =
uint40
The specific integer type
Constants
val
zero :
t
The value 0
val
one :
t
The value 1
val
max_int :
t
The greatest representable integer
val
min_int :
t
The smallest representable integer; for unsigned integers this is
zero
.
val
bits : int
The number of bits used by this integer
Infix operations
Integer division. Raise Division_by_zero
if the second argument is
zero. This division rounds the real quotient of its arguments towards
zero, as specified for (/)
.
Arithmetic operations
Integer division. Raise Division_by_zero
if the second argument is
zero. This division rounds the real quotient of its arguments towards
zero, as specified for (/)
.
Integer remainder. If y
is not zero
, the result of rem x y
satisfies the following property: x = add (mul (div x y) y) (rem x y)
.
If y = 0
, rem x y
raises Division_by_zero
.
Bitiwse operations
shift_left x y
shifts x
to the left by y
bits. The result is
unspecified if y < 0
or y >= bits
.
shift_right x y
shifts x
to the right by y
bits. If this is a
signed integer, this is an arithmetic shift: the sign bit of x
is
replicated and inserted in the vacated bits. The result is unspecified
if y < 0
or y >= bits
. For an unsigned integer, this is identical to
shift_right_logical
.
shift_right_logical x y
shifts x
to the right by y
bits. This is a
logical shift: zeroes are inserted in the vacated bits regardless if x
is a signed or unsiged integer. The result is unspecified if y < 0
or
y >= bits
.
Numeric conversion functions
val
of_int : ``int
->
t
Convert the given integer (type int
) to this integer type.
val
to_int :
t
->
int
Convert the given integer (type t
) to an integer of type int
.
val
of_float : ``float
->
t
Convert the given floating-point number to an integer of type t
.
val
to_float :
t
->
float
Convert the given integer to a floating-point number.
val
of_nativeint : ``nativeint
->
t
Convert the given integer (type t
) to a native integer.
val
to_nativeint :
t
->
nativeint
Convert the given native integer (type nativeint
) to an integer (type
t
.
String conversion functions
val
of_substring : ``string
->
``pos:int
->
t
* int
Convert the given substring starting at the given offset pos
to an
integer of type t
and return the offset. The string is read in decimal
(by default) or in hexadecimal, octal or binary if the string begins
with 0x
, 0o
or 0b
respectively. Raise Failure "*_of_substring"
if the given string is not a valid representation of an integer, or if
the integer represented exceeds the range of integers representable in
type t
.
val
of_string : ``string
->
t
Convert the given string to an integer of type t
. The string is read
in decimal (by default) or in hexadecimal, octal or binary if the string
begins with 0x
, 0o
or 0b
respectively. Raise
Failure "*_of_string"
if the given string is not a valid
representation of an integer, or if the integer represented exceeds the
range of integers representable in type t
.
val
to_string :
t
->
string
Return the string representation of its argument, in decimal.
val
to_string_bin :
t
->
string
Return the string representation of its argument, in binary (beginning
with 0b
)
val
to_string_oct :
t
->
string
Return the string representation of its argument, in octal (beginning
with 0o
)
val
to_string_hex :
t
->
string
Return the string representation of its argument, in hex (beginning with
0x
)
val
printer :
Stdlib.Format.formatter
->
t
->
unit
val
printer_bin :
Stdlib.Format.formatter
->
t
->
unit
val
printer_oct :
Stdlib.Format.formatter
->
t
->
unit
val
printer_hex :
Stdlib.Format.formatter
->
t
->
unit
Raw bytes conversion functions
val
of_bytes_big_endian :
Stdlib.Bytes.t
->
``int
->
t
of_bytes_big_endian buffer offset
creates an integer value of type t
from the buffer buffer
starting at offset offset
. The byte order is
interpreted to be big endian. If the buffer does not hold enough bytes
for this integer, i.e. if
(Bytes.length buffer) < (offset + (bits / 8))
, the function will raise
Invalid_argument "index out of bounds"
.
val
of_bytes_little_endian :
Stdlib.Bytes.t
->
``int
->
t
of_bytes_big_endian buffer offset
creates an integer value of type t
from the buffer buffer
starting at offset offset
. The byte order is
interpreted to be little endian. If the buffer does not hold enough
bytes for this integer, i.e. if
(Bytes.length buffer) < (offset + (bits / 8))
, the function will raise
Invalid_argument "index out of bounds"
.
val
to_bytes_big_endian :
t
->
Stdlib.Bytes.t
->
``int
->
unit
to_bytes_big_endian i buffer offset
writes the integer i
to the
buffer buffer
starting at offset offset
. The byte order used is big
endian. If the buffer does not hold enough bytes, i.e. if
(Bytes.length buffer) < (offset + (bits / 8))
, the function will raise
Invalid_argument "index out of bounds"
.
val
to_bytes_little_endian :
t
->
Stdlib.Bytes.t
->
``int
->
unit
to_bytes_little_endian i buffer offset
writes the integer i
to the
buffer buffer
starting at offset offset
. The byte order used is
little endian. If the buffer does not hold enough bytes, i.e. if
(Bytes.length buffer) < (offset + (bits / 8))
, the function will raise
Invalid_argument "index out of bounds"
.
Comparison function
The comparison function for integers of type t
, with the same
specification as compare. Along with the type t
, this function compare
allows this module to be passed as argument to the functors Set.Make and
Map.Make.