-sharpinclude <stdio.h>
int main()
{
int i = 15;
float m = (float)i;
printf("%d\n", m);
return 0;
} output 0?
I know that floating-point output should be% f instead of% d, but why? Why is the% d output floating point result 0?
is clearly float, but output with d , which is undefined behavior . The so-called undefined behavior means that the compiler can do anything, such as outputting 0, or 15, or junk numbers for you, or simply crashing the program.
7.5f,111.11.1112^2,S022+127 = 129;10000001;111;7.50100 0000 1111 0000 0000 0000 0000 0000;floatdouble8S01100010000001;111:0000 1000 0001 1110 0000 0000 0000 0000:0000 0000 0000 0000 1110 0001 1000 0000
%d 40;
: float m %d
should be the problem of% d changed to% f or% lf
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