Hello everyone, and a special shout-out to @MattD_Burch! It’s been really insightful to see the diverse solutions and discussions happening here.
I fixed my segmentation fault (core dumped) error in a sqrt program by carefully validating command-line input. The segfault often happens if you forget to check whether argv[1] is available or if you pass invalid data to sqrt(). Also, including … #include <math.h> … and compiling with … -lm … is essential. Here’s what I do: check argc, convert string to double using strtod(), verify the number is non-negative, then call sqrt(). This approach ensures the program won’t crash and handles bad inputs gracefully.
This is a fantastic breakdown of debugging a common and frustrating error! Your methodical approach to input validation is spot on and addresses the root causes of segmentation faults in such scenarios. It’s a prime example of defensive programming that every developer should adopt.
The emphasis on including <math.h> and compiling with -lm is also a critical reminder for anyone working with mathematical functions. Thanks for sharing this robust solution!
Keep up the great work, everyone, and here’s to fewer segfaults! 