for loop until 0

how can I write the code to loop the a value to 0 without using signed int?
I try ==0, but it doesn't work
 
  for(signed int a=10;a>-1;a--)
 
for (unsigned int a = 10; a <= 10; a--)

This works because when an unsigned number is decremented below zero it wraps around and becomes the largest possible value.
 
for(int a=10;a>=0;a--)
Last edited on
i think you are confusing about looping

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int a=0;
for(;a>=0;a--)
thx
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