what does the following call mean in C?

Question

I am exploring an sdk and I came across the following set of statements.

uint32_t init_time = 0;
init_time = get_current_time_in_ms();
(void)init_time; // What does this statement do?

My first thought was that this is a NULL check of some sorts but I tried zero and non-zero value in a test C code doing something similar but response in both case was the same.

Any help would be appreciated.

score 6 · Accepted Answer · answered Jul 17 '19 at 07:50

6

This statement does not do anything logically.

It is sometimes added to avoid warnings in compilers and Static Analysers for unused variables

answered Jul 17 '19 at 07:50

Rishikesh Raje

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Bumsik Kim · Answer 2 · 2019-07-17T08:08:30.050

4

(void) variable; is usually used to avoid unused variable warnings.

It doesn't do anything but the SDK dev might left it there for future use.

edited Jul 17 '19 at 08:08

answered Jul 17 '19 at 07:52

Bumsik Kim

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what does the following call mean in C?

2 Answers2