Using include files
The #include preprocessor directive allows you to retrieve source statements from secondary input files and incorporate them into your C/C++ program.
z/OS XL C/C++ Language Reference describes the #include directive. Its syntax is:
>>-#include--+-<--+----+--filename-->-+------------------------>< | '-//-' | '-"--+----+--filename--"-' '-//-'
The angle brackets specify system include files, and double quotation marks specify user include files.
When you use the #include directive, you must be aware
of the following:
- The library search sequence, the search order that XL C/C++ uses to locate the file. See Search sequences for include files for more information on the library search sequence.
- The file-naming conversions that the XL C/C++ compiler performs.
- The area of the input record that contains sequence numbers when you are including files with different record formats. See z/OS XL C/C++ Language Reference for more information on #pragma sequence.