what is Segmentation fault core dumped

Question

I am trying to write a C program in linux that having sqrt of the argument  Here s the code    include lt stdlib h gt   include lt stdio h gt   include lt math h gt   int main char  argv         float k      printf  this is consumer n        k  float sqrt atoi argv 1         printf   s n  k       return 0      After I type in my input at the  shell    prompt  gcc gives me the following error   Segmentation fault  core dumped

User · Accepted Answer

Segmentation fault  means that you tried to access memory that you do not have access to   The first problem is with your arguments of main  The main function should be int main int argc  char  argv     and you should check that argc is at least 2 before accessing argv 1    Also  since you re passing in a float to printf  which  by the way  gets converted to a double when passing to printf   you should use the  f format specifier  The  s format specifier is for strings    0 -terminated character arrays

[c] what is Segmentation fault (core dumped)?

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