FreeRTOS - Debugging and Monitoring
Which of the following is the correct syntax to use
configASSERT() to check if a pointer ptr is not NULL?Which of the following is the correct syntax to use configASSERT() to check if a pointer ptr is not NULL?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the condition to check pointer validity
We want to assert that the pointer is NOT NULL, so the condition should be true when ptr is valid.Step 2: Analyze each option
configASSERT(ptr != NULL); checks ptr != NULL, which is correct. configASSERT(ptr == NULL); checks ptr == NULL (wrong), C uses assignment (=) which is a syntax error, and D checks ptr as a boolean but is less explicit.Final Answer:
configASSERT(ptr != NULL); -> Option DQuick Check:
Check pointer not NULL with ptr != NULL [OK]
Quick Trick: Use != NULL to assert pointer is valid, not == NULL [OK]
Common Mistakes:
- Using assignment (=) instead of comparison (== or !=)
- Checking for NULL instead of not NULL
- Relying on implicit pointer truthiness
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