Ambient pressure concept of pressure becomes irrelevant, and it is undefined at a gravitational singularity. The SI unit of pressure is the pascal (Pa), which is a very small unit relative to atmospheric pressure on Earth, so kilopascals (kPa) are more commonly used in this context. The ambient atmospheric pressure at sea level is not constant: it varies with the weather, but averages around 100 kPa. In fields such as meteorology and underwater diving, it is common to see ambient pressure expressed in bar or millibar. One bar is 100 kPa or approximately ambient pressure at sea level. Ambient pressure may in
Comparison of Pascal and C in modern Pascal as well). Example; Pascal: Status := Status + [StickyFlag]; Status := Status - [StickyFlag]; if (StickyFlag in Status) then ... or Pascal: Status := Status or StickyFlag; Status := Status and not StickyFlag; if StickyFlag and Status = StickyFlag then ... C: Status |= StickyFlag; Status &= ~StickyFlag; if (Status & StickyFlag) { ... Although bit operations on integers and operations on sets can be considered similar if the sets are implemented using bits, there is no direct parallel between their uses unless a non-standard conversion between integers and sets is possible. During expression evaluation, and in