HP aC++/HP C Programmer's Guide (B3901-90036; A.06.26; September 2011)

aCC -Ae

aCC -AC99

-Ae

Setting the -Ae option invokes aC++ as an ANSI C compiler, with additional support

for HP C language extensions.

This option is a synonym for the -AC99 option.

For C++, if -Ae is anywhere on the command line, C-mode will be in effect. The options,

-AA and -AP, are ignored with warnings. If both -Ae and -Aa are present, C-mode

will be in effect and the right most option determines whether extended ANSI (-Ae) or

strict ANSI (-Aa) is in effect. To get strict ANSI, both -Ae and -Aa option are required.

NOTE: Some code that is a warning in C may be a fatal error in HP aC++.

-Ag++

This option enables GNU C++ dialect compatibility. Not all GNU features are available,

for instance, the asm mechanism. See also “-fshort-enums ” (page 39).

-Agcc

This option enables GNU C dialect compatibility. Not all GNU features are available,

for instance, the asm mechanism. See also “-fshort-enums ” (page 39).

NOTE: For HP aC++, the -Ae option must also be used.

-AOa and -AOe

-AOa

-AOe

See the following C mode options:

• “-Aa” (page 100)

• “-Ae” (page 102)

In addition to specifying the ANSI C language dialect, allows the optimizer to aggressively

exploit the assumption that the source code conforms to the ANSI programming language

C standard ISO 9899:1990.

At present, the effect is to make +Otype_safety=ansi the default. As new

independently-controllable optimizations are developed that depend on the ANSI C

standard, the flags that enable those optimizations may also become the default under

-AOa or -AOe.

102 Command-Line Options