limit on number of parameters to a C function

[144.16.64.4 [shishir]]

what is the upper limit on the number of parameters to a function in C ?
what is the mechanism by which parameters are passed in C, for instance thru registers or stack.Obviously both are limited.

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[Eric Amick]

what is the upper limit on the number of parameters to a function in C ?

It's implementation-dependent. The Standard requires the limit to be at
least 127.

what is the mechanism by which parameters are passed in C, for instance thru registers or stack.Obviously both are limited.

The behavior of parameter passing must conform to the Standard's
description, but the implementation is unspecified.

 

[Dan Pop]

what is the mechanism by which parameters are passed in C,

The standard doesn't tell us.

for instance thru registers or stack.Obviously both are limited.

No problem: the caller might write them on the disk and the callee might
read them from the disk. The standard certainly allows such an
implementation.

Dan