C/C++ Programmer's Guide (G06.25+)

Compiler Pragmas

HP C/C++ Programmer’s Guide for NonStop Systems—429301-008

13-9

ANSICOMPLY

The ANSICOMPLY pragma directs the TNS C compiler to perform strict syntax checking

for compliance to the ISO/ANSI C standard.

The pragma default settings are:

Usage Guidelines

•

In the Guardian TNS C environment, the ANSICOMPLY pragma can appear either

on the compiler RUN command line or in the source text. However, in the G-series

OSS TNS C environment, the ANSICOMPLY pragma must be specified in the

source file. In either environment, if you use the pragma within a source file, the

pragma must appear before any C language source statements.

•

The ANSICOMPLY pragma also sets the ANSISTREAMS pragma.

•

For ISO/ANSI C standard compliance checking, the compiler:

Disables arithmetic overflow traps.

Flags HP C language extensions for NonStop systems.

Checks for conformance to the #define preprocessor directive. For a

description of the difference between HP C and the ISO/ANSI C standard, see

Section 10, Converting C-Series TNS Programs to Use the Current TNS

Compiler.

•

The native C and C++ compilers do not support this pragma; use the

NOEXTENSIONS pragma instead.

ANSICOMPLY

SYSTYPE GUARDIAN SYSTYPE OSS

TNS C compiler Not set Not set

G-series TNS c89 utility Not set Not set

TNS/R native C and C++ compilers N.A. N.A.

Native c89 utility N.A. N.A.

TNS/E native C and C++ compilers N.A. N.A.