Controls the use of non-ARM language features.

This pragma is compatible with the following platform targets:

68K

PowerPC

NEC V800

Intel x86

MIPS

Embedded 68K

When pragma ARM_conform is on, the compiler generates an error when it encounters certain ANSI C++ features that conflict with the C++ specification in The Annotated C++ Reference Manual. Use this option only if you must make sure that your code strictly follows the specification in The Annotated C++ Reference Manual.

Turning on this pragma prevents you from doing the following

• Using protected base classes. For example:

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class X {};
class Y : protected X {}; // OK if ARM_conform is off.

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• Changing the syntax of the conditional operator to let you use assignment expressions without parentheses in the second and third expressions. For example:

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i ? x=y : y=z  // OK if ARM_conform is off.
i ? (x=y):(y=z)   // ALWAYS OK 

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• Declaring variables in the conditions of if, while and switch statements. For example:

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while (int i=x+y) { . . . }  // OK if ARM_conform is off.

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for(int i=1; i<1000; i++) { /* . . . */ }
return i;  // OK if ARM_conform is on.

This pragma corresponds to the ARM Conformance option in the C/C++ Language Panel. To check whether this option is on, use __option (ARM_conform), described in "Checking Options."