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Woe unto any user that doesn't know that "pow" is a standard library function in C. The C standard allows this inconsistent behavior, sadly (Section 7.1.3 of N1124). I think C++ is better, at least based on how GCC behaves.
#include <stdio.h>
double pow(double x, double y)
return x + y;
int main()
volatile int y = 1;
printf("%f\n", pow(10, y)); // prints 11.000000
printf("%f\n", pow(10, 1)); // prints 10.000000
return 0;
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