Open System Services Shell and Utilities Reference Manual (G06.29+, H06.08+, J06.03+)

c89(1) OSS Shell and Utilities Reference Manual

-Wversion1 | -Wversion2 | -Wversion3

Speciﬁes which C++ dialect to compile.

-Wversion1 speciﬁes the original version, released with D40. This is the default for

systems with a Release Version Update (RVU) prior to G06.00. This value is only

valid for TNS/R-targeted C++ compilations.

-Wversion2 speciﬁes the dialect released with D45. This version supports such

features as the bool type, namespaces, and exceptions.

-Wversion3 speciﬁes the dialect released with G06.20. This version supports an

ANSI/ISO Standard C++ Library corresponding to ISO/IEC IS 14882. This is the

default for TNS/R systems beginning with RVU G06.00 and for TNS/E systems begin-

ning with RVU H06.01.

These three dialects are not compatible.

All modules of a C++ program must be compiled and linked using the same dialect.

-Ww Suppresses the printing of compiler warning messages. This ﬂag overrides any

-Wwarn or -Wnowarn ﬂags.

-W[no]warn[=w [,w ] ... ]

For each w value that appears, this ﬂag enables [disables] the compiler warning mes-

sage speciﬁed by w.

Declaring a w value enables [disables] the speciﬁed message. Specifying -Wwarn

[-Wnowarn] by itself enables [disables] all compiler warning messages.

If -Wwarn=w is speciﬁed, then -Wnowarn must also be speciﬁed or the -Wwarn=w

ﬂag is ignored. If -Wnowarn=w is speciﬁed, then -Wwarn need not be speciﬁed.

If white space is present after the commas, the list of warning message numbers should

be enclosed in quotation marks.

-Wwarn is the default speciﬁcation for this ﬂag. -Ww overrides the -W[no]warn ﬂag.

-Wx Strips part of the symbol table from the output object ﬁle but keeps information neces-

sary for the object ﬁle to be used as input to a linker utility again. This ﬂag is typically

used with -Wr.

Multiple instances of the -D, -I, and -U ﬂags and of the -l operands can be speciﬁed.

The position of -l library operands within a list of ﬂags affects the order in which the libraries are

searched.

The order of specifying the -I and -L ﬂags is signiﬁcant.

Quotation marks around string values in ﬂags are optional but recommended to avoid errors

caused by shell substitutions or deletions.

Refer

to the C/C++ Programmer’s Guide for details.

DESCRIPTION

c89 is a driver program for the native C and C++ language compilation system. This reference

page describes using c89 in the OSS environment.

c89 performs simple validation of the ﬂags and operands from the arguments on its command

line and, depending on those arguments, invokes components of the language compilation sys-

tem. c89 does not verify the existence of ﬁles it passes to compilation system components. It

does verify that the operand sufﬁx identiﬁes a valid operand to pass to compilation system com-

ponents. c89 and the components it runs issue messages to the standard error ﬁle.

2−22 Hewlett-Packard Company 527188-021