最近使用gSOAP XML/RPC + C代码编写我的测试程序，编译时出现“soapStub.h: error: redefinition of parameter ‘soap’”。

[root@localhost src]# make iclient
gcc -o iclient iclient.c wsi2c.h soapClient.c soapC.c base.c base.h -lgsoap
In file included from soapH.h:13:0,
from iclient.c:12:
soapStub.h:255:132: error: redefinition of parameter ‘soap’
SOAP_FMAC5 int SOAP_FMAC6 soap_call_ns__myset(struct soap *soap,const char *soap_endpoint,const char *soap_action,struct soap *soap,char *bus,char *devaddr,int reg,int data,int *result);

根据提示，soap_call_ns__myset(struct soap *soap,int *result)，注意到了soap_call_ns__myset函数的参数出现了两个struct soap*soap，因此报此错。

解决方法是将iws.h文件直接删除struct soap *soap即可。

int ns__myset(struct soap *soap,char *bus,int *result);

如果服务器端需要使用struct soap *soap结构体指针，那就在服务器端程序中添加即可。例如：

1、iws.h

int ns__myset(char *bus,int *result);

2、iserver.c

int ns__myset(struct soap *soap,char *bus,int *result);