C Compiler

The following lists the new and changed features in this release of version 5.12 specific to the C compiler. For details, see the Oracle Solaris Studio 12.3: C User’s Guide and the cc man page.

• A new suboption —xbuiltin=%default only inlines functions that do not set errno. The value of errno is always correct at any optimization level, and can be checked reliably.

• —xkeepframe option prohibits stack related optimizations for the named functions.

• Use of -features=%none and -features=%all deprecated in this release.

• New attributes vector_size and returns_twice recognized.

• -xcheck=init_local now initializes VLAs (variable length arrays) according to their base type.

• The functionality of the aligned attribute expanded to include automatics as well as globals and statics.

• -xdumpmacros provides information such as macro defines, undefines, and instances of usage.

• New option —xanalyze={code|no} produces a static analysis of the source code that can be viewed using the Oracle Solaris Code Analyzer.