C/C++ Ternary Operator Precedence and Associativity

Although many sources incorrectly place the ternary- and assignment operators on two seperate levels, they in fact share the same precedence level. Note, however, the right-to-left associativity of both, which allows an unparenthesized ternary operation to be assigned to a variable.

If you would like to verify this yourself, take a look at the C++ standard. Alternatively run the following in a compiler of your choice:

int x=0,y=0;

You will find that, after running the above, both x and y are zero, which is consistent with

int x=0,y=0;

and not with

int x=0,y=0;

in which case x=5.

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