ISO C++ 禁止声明没有类型的 'int32'

Question

正在尝试构建 AOSP 版本并遇到此错误

error: ISO C++ forbids declaration of 'int32' with no type

error: typedef 'int32' is initialized (use decltype instead)

error: 'loc_event_cb_f_type' was not declared in this scope

这是抛出错误的声明

typedef int32 (loc_event_cb_f_type)(
    rpc_loc_client_handle_type            loc_handle,             /* handle of the client */
    rpc_loc_event_mask_type               loc_event,              /* event mask           */
    const rpc_loc_event_payload_u_type*   loc_event_payload       /* payload              */
);

这是完整的文件：/libloc_api-rpc/rpc_inc/loc_api_rpc_glue.h

#ifndef LOC_API_RPC_GLUE_H
#define LOC_API_RPC_GLUE_H

/* Include RPC headers */
#include "rpc_inc/loc_api_common.h"
#include "rpc_inc/loc_api.h"
#include "rpc_inc/loc_api_cb.h"
#include "rpc_inc/loc_api_fixup.h"

#ifdef __cplusplus
extern "C"
{
#endif

/* Boolean */
/* Other data types in comdef.h are defined in rpc stubs, so fix it here */
typedef unsigned char boolean;
#define TRUE 1
#define FALSE 0

extern int loc_api_glue_init(void);
extern int loc_api_null(void);

typedef int32 (loc_event_cb_f_type)(
      rpc_loc_client_handle_type            loc_handle,             /* handle of the client */
      rpc_loc_event_mask_type               loc_event,              /* event mask           */
      const rpc_loc_event_payload_u_type*   loc_event_payload       /* payload              */
);

extern rpc_loc_client_handle_type loc_open(
      rpc_loc_event_mask_type       event_reg_mask,
      loc_event_cb_f_type* event_callback
);

extern int32 loc_close
(
      rpc_loc_client_handle_type handle
);

extern int32 loc_start_fix
(
      rpc_loc_client_handle_type handle
);

extern int32 loc_stop_fix
(
      rpc_loc_client_handle_type handle
);

extern int32 loc_ioctl
(
      rpc_loc_client_handle_type           handle,
      rpc_loc_ioctl_e_type                 ioctl_type,
      rpc_loc_ioctl_data_u_type*           ioctl_data
);

#ifdef __cplusplus
}
#endif

#endif /* LOC_API_RPC_GLUE_H */

你有什么想法吗？

Answer 1

问题是 int32 没有定义或包含在任何地方

如@luuserdroog 所写，

Should it be int32_t?

int32_t 和其他 intX_t 类型定义在 /usr/include/stdint.h 中定义，因此可以通过将所有 int32 替换为 int32_t 或@JonathanLeffler 提议来解决, 定义了int32类型，更方便干净。

typedef uint32_t uint32;

但要解决其他文件的这个问题，

将此声明添加到 /usr/include/stdint.h 将起作用

#ifndef __uint8_defined
typedef uint8_t uint8;
# define __uint8_defined
#endif

#ifndef __int8_defined
typedef int8_t int8;
# define __int8_defined
#endif

#ifndef __uint16_defined
typedef uint16_t uint16;
# define __uint16_defined
#endif

#ifndef __int16_defined
typedef int16_t int16;
# define __int16_defined
#endif

#ifndef __uint32_defined
typedef uint32_t uint32;
# define __uint32_defined
#endif

#ifndef __int32_defined
typedef int32_t int32;
# define __int32_defined
#endif

#ifndef __uint64_defined
typedef uint64_t uint64;
# define __uint64_defined
#endif

#ifndef __int64_defined
typedef int64_t int64;
# define __int64_defined
#endif

ISO C++ 禁止声明没有类型的 'int32'

ISO C++ forbids declaration of 'int32' with no type

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linux

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