Static variable in 'for' loop initial declaration

Question

Would like to know why cannot I declare a Static variable in for loop initialization as shown below,

for(static int i = 0;;)

Compiling the above loop statement code with my C99 standard compiler I see the below error,

error: declaration of static variable ‘i’ in ‘for’ loop initial declaration

Answer 1

C does not allow it

C11dr 6.8.5 Iteration statements 3

"The declaration part of a for statement shall only declare identifiers for objects having storage class auto or register".

(not static)

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Typically code would not benefit form being able to have an iterator that is static.

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storage-class-specifier:

typedef
extern
static
_Thread_local
auto
register