c - Can gcc inline an indirect function call through a constant array of function pointers? -

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let's have code:

inline int func_2 (int a, int b) {   return time() + * b; }  int main (void) {   int x = (int (*[])(int, int)){func_1, func_2, func_3}[1](6, 7); }

can gcc somehow tricked inline indirect calls func_*?

after compiling code -o2 , -o3, still spot call func_2 instruction in assembly output.

i know hairy expression can converted bulky switch statement inlined calls each case, prefer former compactness.

if not hurt allocate space in data segment, can try this:

static int func_2 (int a, int b) {     return time() + * b; }  static int (* const ftab[])(int,int) = {func_1, func_2, func_3};  int foo (void) {     return ftab[1](6,7); }

my gcc 4.4.5 correctly inlines function -o2.

the aggregate initializer inside code of function not forward constant expect, don't know wheter it's gcc bug or our misunderstanding of c rule.


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