We all know Linux is written in C. What you may not know is that it's written in a long-outdated C dialect: The 1989 version of the C language standard, C89. This is also known as ANSI X3.159-1989, or ...
Performance gains of up to approximately 30% over gcc 3.2. Optional Fortran compiler vs. g77, which translates into C and compiles with GCC. GCC compatibility mode. 64-bit support (Intel Itanium only) ...