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static const char[?

April 26, 2017const static

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static const char[?

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in C++. This allows overloading to occur properly with a routine accepting say a const char *. It also works with legacy situations because C++ also provides for a conversion so that when a const char * is not the target, it will also still allow legacy assignments to char *s. The conversion does not change the writeability of the literal though. • A given implementation may always allow extensions, so a given implementation, or even mode of an implementation perhaps controlled by a command line switch, may allow string literal writeability. • There is a transformation possible which removes the undefined behavior: Name the string literal: #include int main() { char comeau[] = “comeau”; /* Name it, now it’s writeable, and unique. You may or may want it to also be static or const which may or may not require other code changes. */ char *p = comeau; p[0] = ‘C’; /* Ok */ printf(“p=’%s’\n”, p); return 0; } When possible, you can also declare the original pointer as a const char *