1, C function parameters into the stack order - from right to left
The following example is used to verify the C function parameters into the stack order:
Void Test (int I1, INT I2, INT I3)
{
Printf ("I1 =% D, I2 =% D, I3 =% D / N", I1, I2, I3);
}
INT i = 0;
TEST ( i, i, i);
The output result is: I1 = 3, I2 = 2, i3 = 1
2, an interesting small problem - expression and operator binding order
It is a bit confused in the VC Forum to the following expression calculations.
INT i = 1;
INT K = ( i) ( i) ( i);
INT I2 = 1;
INT K2 = ( i2) ( i2);
I also tested it, many people will think K = 2 3 4 = 9;
However, in fact, compiled in VC, DEVC 4.9 (GCC), executes the result of K = 10;
Some other people's opinions and my own tests have been concluded:
K = ( i) ( i) ( i); // is equivalent to i, i, k = i i ( i); that is, K = 3 3 4 = 10.
Therefore, the result of K2 is 6.
Of course, this deep analysis of the grammatically, interested friends can analyze the C related grammar.
