Bar (unit) mb (rather than the proper mbar) to denote the millibar. Between 1793 and 1795, the word bar was used for a unit of weight in an early version of the metric system. Atmospheric air pressure is often given in millibars, where standard atmospheric pressure at sea level is defined as 1013.25 mbar, 101.325 kPa, 1.01325 bar, which is about . Despite the millibar not being an SI unit, meteorologists and weather reporters worldwide have long measured air pressure in millibars as the values are convenient. After the advent of SI units, some meteorologists began using hectopascals (symbol hPa) which are
Comparison of Object Pascal and C (if it has to be), i.e., its storage management is handled by the compiler (or more accurately, by the runtime code inserted by the compiler in the executable). String concatenation is done with the codice_65 operator, and string comparison can be done with standard relational operators (case sensitive): codice_66. Object Pascal also provides C-compatible strings under the type codice_67, with manipulation routines defined in the codice_68 unit. Moreover, Object Pascal provides a wide variety of string types: For convenience, the plain codice_76 type is provided, which, depending on a compiler switch, could mean codice_69, codice_71 or codice_74. An additional convention