C++ FAQ Celebrating Twenty-One Years of the C++ FAQ!!!
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Section 33:
[33.7] How do I create and use an array of pointer-to-member-function?

Use both the typedef and the #define macro described earlier, and you're 90% done.

Step 1: create a typedef:

class Fred {
  int f(char x, float y);
  int g(char x, float y);
  int h(char x, float y);
  int i(char x, float y);

// FredMemFn points to a member of Fred that takes (char,float)
typedef  int (Fred::*FredMemFn)(char x, float y);
Step 2: create a #define macro:
#define CALL_MEMBER_FN(object,ptrToMember)  ((object).*(ptrToMember))
Now your array of pointers-to-member-functions is straightforward:
FredMemFn a[] = { &Fred::f, &Fred::g, &Fred::h, &Fred::i };
And your usage of one of the member function pointers is also straightforward:
void userCode(Fred& fred, int memFnNum)
  // Assume memFnNum is between 0 and 3 inclusive:
  CALL_MEMBER_FN(fred, a[memFnNum]) ('x', 3.14);
Note: #define macros are evil in 4 different ways: evil#1, evil#2, evil#3, and evil#4. But they're still useful sometimes. Feel ashamed, feel guilty, but when an evil construct like a macro improves your software, use it.