I've noticed some argument promotions that seem not to have been made
explicit. In the code:
int testDifferent(int x, ...);
[...]
char mychar = 5;
short int myshort = 10;
float myfloat = 30.0;
testDifferent(0, mychar, myshort, 15, 20L, 25LL, myfloat);
return 0;
The mychar, myshort, and myFloat arguments in the call to testDifferent()
are to be promoted according to 7.15.1.1:2. However, this is not happening
explicitly. Here is the output from CIL:
char mychar ;
short myshort ;
float myfloat ;
{
mychar = (char)5;
myshort = (short)10;
myfloat = (float )30.0;
testDifferent(0, mychar, myshort, 15, 20L, 25LL, myfloat);
return (0);
}
I would have expected:
testDifferent(0, (int)mychar, (int)myshort, 15, 20L, 25LL, (double)myfloat);
The work that I am doing relies on promotions being explicit, so this is
important to me. Is the intention to support these promotions? If so,
perhaps I am somehow disabling these inadvertently? Is my understanding of
the C spec incorrect? I appreciate any information/advice you can provide.
Thanks!
-Chucky
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