[ Example: a simple example of a complete function definition is
int max(int a, int b, int c) {
int m = (a > b) ? a : b;
return (m > c) ? m : c;
}
Here int is the decl-specifier-seq; max(int a, int b, int c) is the declarator; { /* ... */ } is the function-body. — end example ]
[ Note: Unused parameters need not be named. For example,
void print(int a, int) {
std::printf("a = %d\n",a);
}
— end note ]
In the function-body, a function-local predefined variable denotes a block-scope object of static storage duration that is implicitly defined (see [basic.scope.block]).
The function-local predefined variable __func__ is defined as if a definition of the form
static const char __func__[] = "function-name";
had been provided, where function-name is an implementation-defined string. It is unspecified whether such a variable has an address distinct from that of any other object in the program.104
[ Example:
struct S {
S() : s(__func__) { } const char* s;
};
void f(const char* s = __func__);
— end example ]
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