MSP430 IAR C/C++ Compiler reference guide - Rice University

Data types in C++constant and non-constant objects. It is good programming practice to use constdeclared pointers whenever possible because this improves the compiler’s possibilitiesto optimize the generated code and reduces the risk of application failure due toerroneously modified data.Static and global objects declared const are allocated in ROM.In C++, objects that require runtime initialization cannot be placed in ROM.Data types in C++In C++, all plain C data types are represented in the same way as described earlier in thischapter. However, if any Embedded C++ features are used for a type, no assumptionscan be made concerning the data representation. This means, for example, that it is notlegal to write assembler code that accesses class members.178MSP430 IAR C/C++ CompilerReference Guide