OpenVMS VAX application programmers migrate from VAX C to Compaq C . Because Compaq C contains features and enhancements to the ANSI C language, use the Compaq C User's Guide for OpenVMS Systems and the Compaq C Language Reference Manual as the reference books for the full description of Compaq C . It also describes the differences between the VAX and Alpha parameter-passing mechanisms. Conventions Used in this Document Table 1 lists the conventions used in this guide. In syntax definitions, items appearing in monospaced type identify language keywords and the names of OpenVMS and Compaq C Run-Time Library functions.
Interactive examples show user input in boldface type.
Only relevant material is shown in the example. A horizontal ellipsis indicates that additional parameters, options, or values can be entered. A comma that precedes the ellipsis indicates that successive items must be separated by commas. Square brackets, in function synopses and a few other contexts, indicate that a syntactic element is optional. Square brackets are not optional, however, when used to delimit a directory name in an OpenVMS file specification or when used to delimit the dimensions of an array in Compaq C source code.