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UNIX

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If you plan to transport your programs to UNIX, follow these guidelines:

  • Do not remove header files from the SYS subdirectory. You can place the SYS header files elsewhere only if you do not plan to transport your programs to UNIX.

  • Use the UNIX-compatible path delimiter in routines that take strings representing paths and filenames as arguments. UNIX supports only the forward slash (/) for this purpose, whereas Win32 operating systems support both the backslash (\) and the forward slash (/). Thus this book uses UNIX-compatible forward slashes as path delimiters in #include statements, for example. (However, the Windows NT and Windows 95 command shell, CMD.EXE, does not support the forward slash in commands entered at the command prompt.)

  • Use paths and filenames that work correctly in UNIX, which is case sensitive. The file allocation table (FAT) file system in Win32 operating systems is not case sensitive; the installable Windows NT file system (NTFS) of Windows NT preserves case for directory listings but ignores case in file searches and other system operations.

Note In this version of Visual C++, UNIX compatibility information has been removed from the function descriptions.