Numeric limits

ACSUtils defines constants that represent minimum and maximum values that can be stored in memory blocks (variables) of various sizes.

ACS int is a signed 32-bit integer. Unsigned ints don't exist in ACS, so UINT_MAX can't be expressed.

• INT_MIN = -2147483648 (-0x80000000) – minimum value
• INT_MAX = 2147483647 (0x7fffffff) – maximum value

16-bit integers are also known as shorts.

• SHORT_MIN = -32768 – minimum value of signed short
• SHORT_MAX = 32676 – maximum value of signed short
• USHORT_MAX = 65535 – maximum value of unsigned short (minimum is 0)

8-bit integers are also known as bytes.

• BYTE_MIN = -128 – minimum value of signed byte
• BYTE_MAX = 127 – maximum value of signed byte
• UBYTE_MAX = 255 – maximum value of unsigned short (minimum is 0)

Fixed-point numbers are 32-bit integers and have the same limits as int (INT_MIN and INT_MAX). But to enable strict typing, there are separate limit constants for fixed:

• FIXED_MIN = (fixed)-0x80000000 – minimum value (-32768.0)
• FIXED_MAX = (fixed) 0x7fffffff – maximum value (slightly less than 32767.99999)