Type problem? Compiler doesn't help me!

Thank you for your answer,

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1. This is a mix up between two things. You have a mix of subtype syntax and type syntax.

subtype rang0to15 is natural range 0 to 15; -- no () needed

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Yes you are right.

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2. And I don't know what the Table_Nbres type is. You also cannot declare a range as a type.

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The type of Table_Nbres is:

type tBCD7Seg is array (0 to 15) of std_logic_vector(7 downto 0);

The type of Q7Seg is : (Declared in entity)

Q7Seg: out std_logic_vector(7 downto 0)

The type of iCntBCD is: This var contains the position in the table Table_Nbres.

signal iCntBCD: natural (3 downto 0);

Now; Q7Seg <= Table_Nbres((0 to 15)iCntBCD);

(0 to 15) is a cast for iCntBCD

IS IT RIGHT to declar the cast like this? OR WHAT IS WRONG?

Thanks for your reply.