[Solved] returning a buffer in c [closed]

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  1. Is it even possible for “main” to return a buffer?

No and you shouldn’t. What should main() return in C and C++?

  1. How should I create, append string and return it? 
char aString[FIXED_SIZE];
memset(aString, 0, sizeof aString);
strcpy(aString, "This is a string");

solved returning a buffer in c [closed]