Implementation-Defined Behavior
Implementation Dependencies
The value of a single-character character constant in a constant expression that controls conditional inclusion does not match the value of the same character constant in the execution character set. (3.8.1)
A single-character character constant in a constant expression that controls conditional inclusion can have a negative value. (3.8.1)
The method of locating included source files is described in Directory Search Sequence for Include Files Using Relative Path Names. (3.8.2)
Headers are identified by the directive #include <file_name>, and are stored under /usr/include. (3.8.2)
User-defined include-file names can be specified in double quotation marks ("). (3.8.2)
The mapping between the name specified in the include directive and the external source file name is one to one. Multibyte characters are permitted in the include directive. (3.8.2)
The definitions of the __DATE__ and __TIME__ predefined macros are always defined to the system date and time. (3.8.8)
Implementation-Defined Behavior
Implementation Dependencies
