Array Element is a Variable in Array of Strings in C -

i'm trying initialize array of strings in c. want set 1 of elements of array variable, i'm getting compiler error. what's wrong this?

char * const app_name = "test_app";  char * const array_of_strings[4] = {     app_name,     "-f", "/path/to/file.txt",     null };

the error error: initializer element not constant.

the standard distinguishes const-qualified variables , compile time constants.

evaluating variable (app_name) not considered compile time constant in sense of c standard. this

char const app_name[] = "test_app";  char const*const array_of_strings[4] = {     &app_name[0],     "-f", "/path/to/file.txt",     0, };

would allowed, since not evaluating app_name taking address.

also, should treat string literals if had type char const[]. modifying them has undefined behavior, should protect doing so.

Test