In gcc, the following code prints 36
#include "stdio.h"
int func(int a) {
return a++ * ++a;
}
int main() {
printf("func(5)=%d\n", func(5));
return 0;
}
I would expect it to print 35. The unary pre and post increment have
greater precedence over the binary multiplication. Multiplication
associativity is left-to-right. The LHS postincrement should return 5
and then increment to 6. The right hand side should preincrement 6 to
7 and return 7. Thus the binary multiplication should return 35.
But in gcc, I get 36 regardless of whether I switch the LHS and RHS.
What am I missing?
JDH
peds-pc311:~/code/lewis_test> gcc --version
gcc (GCC) 3.3.5 (Debian 1:3.3.5-8ubuntu2)
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