在C中调用宏[ M68K Freescale的HIWARE编译器]

Question

我正试着在c程序中调用一些宏。没有参数的宏是可以的，但是如果我添加了一个参数，我会得到错误。

例如，这就是我在c程序的头文件中调用的代码。

/**Retrieve the value from the persistent store for the given key **/
#define wifi_cmd_flash_ps_load(KEY) \
{\
bglib_temp_msg.cmd_flash_ps_load.key=KEY;\
bglib_temp_msg.header=(((uint32)wifi_dev_type_wifi|(((uint32)2+0)>>8)))|((((uint32)2+0)&0xff)<<8)|((uint32)0x7<<16)|((uint32)0x4<<24);\
bglib_output (4+2,(uint8*)&bglib_temp_msg,0,(uint8*)NULL);\
}


/**Uploading is finished.**/
#define wifi_cmd_dfu_flash_upload_finish() \
{\
bglib_temp_msg.header=(((uint32)wifi_dev_type_wifi|(((uint32)0+0)>>8)))|((((uint32)0+0)&0xff)<<8)|((uint32)0x0<<16)|((uint32)0x3<<24);\
bglib_output (4+0,(uint8*)&bglib_temp_msg,0,(uint8*)NULL);\
}

这是我得到的一个错误：

D:\_Prj_1000\Prj_1000.c(496): ERROR C1085: cmd_flash_ps_load is not a member
D:\_Prj_1000\Prj_1000.c(496): ERROR C1816: Unknown struct- or union-member
D:\_Prj_1000\Prj_1000.c(496): ERROR C1421: Undefined class/struct/union
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: k not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: bglib_temp_msg not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C1421: Undefined class/struct/union
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(496): ERROR C2801: ';' missing
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: bglib_output not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: uint8 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C2450: Expected:  . * + - & ! ~ ++ -- -> [ (  IDENT CONSTANT STRING sizeof __alignof__ __va_sizeof__    
D:\_Prj_1000\Prj_1000.c(496): ERROR C1827: Arithmetic types expected
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: bglib_temp_msg not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C1826: Integer-expression expected
D:\_Prj_1000\Prj_1000.c(496): ERROR C1815: uint8 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(496): ERROR C2450: Expected:  . * + - & ! ~ ++ -- -> [ (  IDENT CONSTANT STRING sizeof __alignof__ __va_sizeof__    
D:\_Prj_1000\Prj_1000.c(496): ERROR C1827: Arithmetic types expected
D:\_Prj_1000\Prj_1000.c(496): ERROR C1844: Call-operator applied to non-function
D:\_Prj_1000\Prj_1000.c(496): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(496): WARNING C1420: Result of function-call is ignored
D:\_Prj_1000\Prj_1000.c(507): ERROR C1815: TPU_init not declared (or typename)
D:\_Prj_1000\Prj_1000.c(508): ERROR C1815: TPU_Buzzer not declared (or typename)
D:\_Prj_1000\Prj_1000.c(520): ERROR C1815: tm_init not declared (or typename)
D:\_Prj_1000\Prj_1000.c(526): ERROR C1815: BulkStart not declared (or typename)
D:\_Prj_1000\Prj_1000.c(528): ERROR C1815: tm_start not declared (or typename)
D:\_Prj_1000\Prj_1000.c(528): ERROR C1815: tm_create not declared (or typename)
D:\_Prj_1000\Prj_1000.c(528): ERROR C1815: T_Background not declared (or typename)
D:\_Prj_1000\Prj_1000.c(528): ERROR C1844: Call-operator applied to non-function
D:\_Prj_1000\Prj_1000.c(528): ERROR C1844: Call-operator applied to non-function
D:\_Prj_1000\Prj_1000.c(530): ERROR C1815: tm_startup not declared (or typename)
D:\_Prj_1000\Prj_1000.c(543): ERROR C1815: bglib_output not declared (or typename)
D:\_Prj_1000\Prj_1000.c(543): ERROR C1815: on_message_send not declared (or typename)
D:\_Prj_1000\Prj_1000.c(548): ERROR C1815: bglib_temp_msg not declared (or typename)
D:\_Prj_1000\Prj_1000.c(548): ERROR C1421: Undefined class/struct/union
D:\_Prj_1000\Prj_1000.c(548): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(548): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(548): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(548): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(548): ERROR C2801: ';' missing
D:\_Prj_1000\Prj_1000.c(548): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(548): ERROR C2801: ')' missing
D:\_Prj_1000\Prj_1000.c(548): ERROR C1815: uint32 not declared (or typename)
D:\_Prj_1000\Prj_1000.c(548): WARNING C1420: Result of function-call is ignored
D:\_Prj_1000\Prj_1000.c(549): WARNING C1420: Result of function-call is ignored

有什么建议吗？

谢谢你的帮助。

Answer 1

在这一行上：

bglib_temp_msg.cmd_flash_ps_load.key=KEY;\

您似乎没有将bglib_temp_msg定义为结构。目前还不清楚这是否意味着在调用它的函数体中完成(即调用者是否应该具有该名称的局部变量)，或者是否像我怀疑的那样，您想要类似于：

struct mystructuretype bglib_temp_msg;

第一个(显然是使用正确的结构名称)。记住使用#include或在使用之前使用相关的结构声明。