Member Avatar for blackmagic01021

I am sorry to bother people with silly questions, But I have no choice.

I have a statement

unsigned short a=4000, current_word;

current_word=a << 3;

Then I have another statement

unsigned long a=4000, current_word;

current_word=a << 19;

According to my knowledge they will contain the same value. Am I right?

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  • Latest Post Latest Post by mbulow
Member Avatar for mbulow

When shifting the bits you loose the bits that gets "pushed out". You don't rotate the bits.

Lets look at your examples (in binary):

a: 0000111110100000
a << 3: 0111110100000000
a << 19: 0000000000000000
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