error strcpy was not declared in this scope

Question

I get this problem in a c   problem compiling in Ubuntu g   version 4 4 3  I dont know the headers to include to solve this problem   Thanks  centro medico cpp  In constructor    Centro medico  Centro medico char   char   int  int  float      centro medico cpp 5  error     strcpy    was not declared in this scope centro medico cpp 13  warning  deprecated conversion from string constant to    char     centro medico cpp 13  warning  deprecated conversion from string constant to    char     centro medico cpp  In member function    Centro medico amp  Centro medico  operator  const Centro medico amp       centro medico cpp 26  error     strcpy    was not declared in this scope centro medico cpp 39  warning  deprecated conversion from string constant to    char     centro medico cpp 39  warning  deprecated conversion from string constant to    char     centro medico cpp  In member function    bool Centro medico  quitar medico int      centro medico cpp 92  warning  deprecated conversion from string constant to    char     centro medico cpp 92  warning  deprecated conversion from string constant to    char     centro medico cpp  In member function    void Centro medico  mostrar especialidades std  ostream amp   const     centro medico cpp 123  error     strcmpi    was not declared in this scope centro medico cpp  In member function    void Centro medico  mostrar horarios consulta char   const     centro medico cpp 162  error     strcmpi    was not declared in this scope centro medico cpp  In member function    void Centro medico  crea medicos       centro medico cpp 321  warning  deprecated conversion from string constant to    char     centro medico cpp 321  warning  deprecated conversion from string constant to    char         medico cpp   include  medico h   include  lt cstdlib gt   include  lt iostream gt   include  lt stdlib gt     include lt cstring gt   include lt string gt   long Medico  total consultas 0   Medico  Medico char  nom char   espe int colegiado int trabajo    int i  strcpy nombre nom   strcpy especialidad espe   num colegiado colegiado  num horas diarias trabajo  citas medico  new Cita  5      5 D  as de las semana  de Lunes a Viernes  for  i 0 i lt 5 i    citas medico i  new Cita num horas diarias        Medico  Medico const Medico  amp m     int i    citas medico new Cita  5     for  i 0 i lt 5 i       citas medico i  NULL     this    m     Medico  amp Medico  operator  const Medico  amp m    int i j   if  this     amp m       Para evitar la asignaci  n de un objeto a s   mismo      strcpy nombre m nombre        strcpy especialidad m especialidad             num colegiado m num colegiado       num horas diarias m num horas diarias       for  i 0 i lt 5 i           delete citas medico i          citas medico i  new Cita num horas diarias         for j 0 j lt num horas diarias j            citas medico i  j    m citas medico i  j                              return  this        medico h   pragma once  include  lt cstdlib gt   include  lt iostream gt  using namespace std   include  cita h   class Medico    private                  char nombre 50                   char especialidad 50                   int num colegiado                  int num horas diarias                  Cita   citas medico                  static long total consultas                   public                  void mostrar calendario citas ostream  amp o cout  const                  bool asignar cita int d  int hor Paciente  p NULL                   void anular cita int d  int hor                   bool consultar cita char dni 10   int modificar 0                   void modificar cita int d  int hor                                   void vaciar calendario citas                    void borrar calendario citas                                    char  get especialidad char espec 50   const                  char  get nombre char n 50   const                  int get num colegiado   const                  int get num horas   const                  void set num horas int horas                   void mostrar info ostream  amp o cout  const                  static long get total consultas                    Cita  operator   int dia                   void eliminar calendario citas                    void crear calendario citas                        Medico char  nom char   espe int colegiado int trabajo                   Medico const Medico  amp m                   Medico  amp operator  const Medico  amp c                   void operator delete void                     Medico         ostream amp  operator lt  lt  ostream  amp o  Medico  amp c    ofstream amp  operator lt  lt  ofstream  amp fichero  Medico  amp m    ifstream amp  operator gt  gt  ifstream  amp fichero  Medico  amp m

User · Answer

When you say     include  lt cstring gt    the g   compiler should put the  lt string h gt  declarations it itself includes into the std   AND the global namespaces  It looks for some reason as if it is not doing that  Try replacing one instance of strcpy with std  strcpy and see if that fixes the problem

User · Answer

This error sometimes occurs in a situation like this    ifndef NAN  include  lt stdlib h gt   define NAN  strtod  NAN  NULL    endif  static void init random uint32 t initseed 0        if  initseed  0                struct timeval tv          gettimeofday  amp tv  NULL           seed  uint32 t   4223517 getpid   tv tv sec tv tv usec             else         seed initseed   if  defined CYGWIN   amp  amp   defined   INTERIX        seed 42       SG SPRINT  initializing random number generator with  d  seed size  d  n   seed  RNG SEED SIZE      initstate seed  CMath  rand state  RNG SEED SIZE    endif     If the following code lines not run in the run-time    ifndef NAN  include  lt stdlib h gt   define NAN  strtod  NAN  NULL    endif   you will face with an error in your code like something as follows  because initstate is placed in the stdlib h file and it s not included   In file included from       shogun features SubsetStack h 14 0                    from       shogun features Features h 21                    from       shogun ui SGInterface h 7                    from MatlabInterface h 15                    from matlabInterface cpp 7         shogun mathematics Math h  In static member function  static void shogun  CMath  init random uint32 t           shogun mathematics Math h 459 52  error   initstate  was not declared in this scope

User · Answer

Observations    include  lt cstring gt  should introduce std  strcpy    using namespace std   as written in medico h  introduces any identifiers from std   into the global namespace   Aside from using namespace std  being somewhat clumsy once the application grows larger  as it introduces one hell of a lot of identifiers into the global namespace   and that you should never use using in a header file  see below    using namespace does not affect identifiers introduced after the statement   using namespace std is written in the header  which is included in medico cpp  but  include  lt cstring gt  comes after that   My advice  Put the using namespace std   if you insist on using it at all  into medico cpp  after any includes  and use explicit std   in medico h   strcmpi   is not a standard function at all  while being defined on Windows  you have to solve case-insensitive compares differently on Linux   On general terms  I would like to point to this answer with regards to  quot proper quot  string handling in C and C   that takes Unicode into account  as every application should  Summary  The standard cannot handle these things correctly  do use ICU    warning  deprecated conversion from string constant to    char      A  quot string constant quot  is when you write a string literal  e g   quot Hello quot   in your code  Its type is const char    i e  array of constant characters  as you cannot change the characters   You can assign an array to a pointer  but assigning to char    i e  removing the const qualifier  generates the warning you are seeing   OT clarification  using in a header file changes visibility of identifiers for anyone including that header  which is usually not what the user of your header file wants  For example  I could use std  string and a self-written   string just perfectly in my code  unless I include your medico h  because then the two classes will clash  Don t use using in header files  And even in implementation files  it can introduce lots of ambiguity  There is a case to be made to use explicit namespacing in implementation files as well

[c++] error: strcpy was not declared in this scope

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