[cpp.predefined] (original) (raw)

• _­_­cplusplus
  The integer literal 202002L.
  [ Note
  :
  It is intended that future versions of this International Standard will replace the value of this macro with a greater value.
  — end note
  ]
• __DATE__
  The date of translation of the source file: a character string literal of the form"Mmm dd yyyy", where the names of the months are the same as those generated by theasctimefunction, and the first character ofddis a space character if the value is less than 10.
  If the date of translation is not available, an implementation-defined valid date shall be supplied.
• __FILE__
  The presumed name of the current source file (a character string literal).149
• __LINE__
  The presumed line number (within the current source file) of the current source line (an integer literal).150
• __STDC_­HOSTED__
  The integer literal 1 if the implementation is a hosted implementation or the integer literal 0 if it is not.
• __STDCPP_­DEFAULT_­NEW_­ALIGNMENT__
  An integer literal of type std​::​size_­twhose value is the alignment guaranteed by a call to operator new(std​::​size_­t)or operator new[](std​::​size_­t).
  [ Note
  :
  Larger alignments will be passed tooperator new(std​::​size_­t, std​::​align_­val_­t), etc.
  — end note
  ]
• __TIME__
  The time of translation of the source file: a character string literal of the form"hh:mm:ss"as in the time generated by theasctimefunction.
  If the time of translation is not available, an implementation-defined valid time shall be supplied.
• The names listed in Table 19.
  The macros defined in Table 19 shall be defined to the corresponding integer literal.
  [ Note
  :
  Future versions of this International Standard might replace the values of these macros with greater values.
  — end note
  ]

Table 19: Feature-test macros [tab:cpp.predefined.ft]