Multiplataforma

[TinoFDW]

Tengo un proyecto en codeblocks en Linux que se compila y ejecuta perfectamente, sin embargo el mismo proyecto en windows no hay manera de que compile, me saltan muchos errores la mayoría del tipo: undefined reference to `printf'. Al ser estandar no deberia haber problema, no?

El codigo lo he sacado de: tws-c-api.cvs.sourceforge.net/viewvc/tws-c-api/tws_client_api/
De los 4 archivos la unica modificación que le he hecho es al archivo example.c, dejandolo así:

Código C++:

#include "twsapi.h"
 
#ifdef unix
//#include <pthread.h>
#include <sys/select.h>
#include <netdb.h>
#include <fcntl.h>
#else
#include <process.h>
#include <winsock2.h>
#include <WS2tcpip.h> /* for ipv6 DNS lookups if needed */
#endif
 
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <float.h>
#include <math.h>
 
static void tws_thread_status(int arg)
{
    /* the real reason for having this func
     * is so that array_of_threads[NAME_OF_THIS_ONE] can be set to
     * pthread_self() on startup and 0 on termination, so that
     * the top level thread can cancel one or all if it wants to
     */
    printf("tws reader thread %s\n", arg ? "terminated" : "started");
}
 
/* User is responsible for implementing this function
 * name is a null terminated string
 * addr is where the address should be copied on success
 * addr_len contains length of addr buffer and
 * may be decreased on return to caller
 * function returns -1 on failure, 0 on success
 */
static int resolve_name(const void *name, void *addr, long *addr_len)
{
    int error = -1;
#if 1
    struct hostent *h;
 
    if(*addr_len < 4)
        goto out;
 
    h = gethostbyname((char *) name); /* does not support ipv6 either, though the API does */
    if(!h)
        goto out;
 
    memcpy(addr, h->h_addr_list[0], 4);
    *addr_len = 4;
    error = 0;
#else
    struct addrinfo *ai = 0, hints;
 
    if(*addr_len < 4)
        goto out;
 
    memset((void *) &hints, 0, sizeof hints);
    hints.ai_family = PF_INET; /* first attempt ipv4 resolution */
    hints.ai_socktype = SOCK_STREAM;
    error = getaddrinfo((char *) name, 0, &hints, &ai);
    if(!error && ai && ai->ai_family == PF_INET) {
        struct sockaddr_in a4;
 
        memcpy((void *) &a4, &ai->ai_addr[0], sizeof a4);
        memcpy(addr, &a4.sin_addr, 4);
        *addr_len = 4;
        error = 0;
    } else
        error = -1;
 
    if(ai)
        freeaddrinfo(ai);
 
    if(!error)
        goto out;
 
    /* try to get an ipv6 address */
    if(*addr_len < 16) {
        error = -1;
        goto out;
    }
 
    ai = 0;
    hints.ai_family = PF_INET6;
    error = getaddrinfo((char *) name, 0, &hints, &ai);
 
    if(!error && ai && ai->ai_family == PF_INET6) {
        struct sockaddr_in6 a6;
 
        memcpy((void *) &a6, &ai->ai_addr[0], sizeof a6);
        memcpy(addr, &a6.sin6_addr, 16);
        *addr_len = 16;
        error = 0;
    } else
        error = -1;
 
    if(ai)
        freeaddrinfo(ai);
#endif
out:
    return error;
}
 
int main(int argc, char *argv[])
{
    int err;
    void *ti;
 
 
    /* 'no_thread' here could also mean that an externally spawned thread
     * that we did not create will handle IO from TWS, somehow we may happen
     * to run in the context of that thread
     */
    ti = tws_create( TWS_NO_THREAD , (void *) 0x12345, tws_thread_status);
    err = tws_connect(ti, 0 , 7496, 1, resolve_name);
    if(err) {
        printf("tws connect returned %d\n", err); exit(1);
    }
 
 
    tr_contract_t c;
    memset(&c, 0, sizeof c);
    c.c_symbol = "DELL";
    c.c_sectype = "STK";
    c.c_expiry = "";
    c.c_right = "";
    c.c_multiplier = "";
    c.c_exchange = "SMART";
    c.c_primary_exch = "";
    c.c_currency = "USD";
    c.c_local_symbol = "";
    tws_request_realtime_bars(ti, 4, &c, 5, "TRADES", 0);
 
 
 
    while(0 == tws_event_process(ti));
 
    tws_destroy(ti);
    return 0;
}
 

[Eternal Idol]

¿Que compilador estas usando? ¿Que parametros? ¿Cual es el output exacto del mismo?

[TinoFDW]

Al final he conseguido que funcionara en windows con:
g++ -DWINDOWS -D_REENTRANT -Wall -Wsign-compare -Wfloat-equal -g -c twsapi.c callbacks.c example.cpp
g++ twsapi.o callbacks.o example.o -o EXECUTABLE_NAME.exe -lws2_32

I en Linux:
g++ -D_REENTRANT -Wall -Wsign-compare -Wfloat-equal -g -c twsapi.c callbacks.c example.cpp
g++ twsapi.o callbacks.o example.o -o a.out

Culpa mía, por mi ínfimo conocimiento del tema, makefiles, etc ( -DWINDOWS -D_REENTRANT, ni idea para que sirven).

Algún sitio donde se explique un poco todo?
He buscado ya, pero no he sabido encontrar casi nada.