Maps the error number in error_code to a locale-dependent error
    message string.

    Format

      #include  <string.h>

      char *strerror  (int error_code); (ANSI C)

      char *strerror  (int error_code[, int vms_error_code]);
                      (DEC C Extension)

  Additional Information (explode) :

• Arguments
• Description
• Return Value
• Example