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分享String* 转 char*出错，请高手指点！！！急
//String -> char*
char* Socket_Cl::stoc(String *s)
{
char* c = "";
memset(c,0x00,100);
Byte bytes[] = System::Text::Encoding::ASCII->GetBytes(s);
for ( int i = 0 ; i < s->get_Length(); i++ ){
c[i] = bytes[i];
}
return c;
}
char* Socket_Cl::stoc(String *s)
{
char* c = "";
memset(c,0x00,100);
Byte bytes[] = System::Text::Encoding::ASCII->GetBytes(s);
for ( int i = 0 ; i < s->get_Length(); i++ ){
c[i] = bytes[i];
}
return c;
}
...全文
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luoleixinhua 2004-09-12
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Pointer "c" need "new" to alloc memory.
saucer 2004-09-12
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you didn't alloc memory for "c" variable
if you want __wchar_t [], you can just do
s->ToCharArray();
otherwise, look into System::Runtime::InteropServices::Marshal class' StringToHGlobalAnsi method
String __gc* str = S"managed string";
const char __nogc* pStr = static_cast<const char*>(Marshal::StringToHGlobalAnsi(str).ToPointer());
also see
http://www.thecodeproject.com/dotnet/managed_unmanaged.asp
if you want __wchar_t [], you can just do
s->ToCharArray();
otherwise, look into System::Runtime::InteropServices::Marshal class' StringToHGlobalAnsi method
String __gc* str = S"managed string";
const char __nogc* pStr = static_cast<const char*>(Marshal::StringToHGlobalAnsi(str).ToPointer());
also see
http://www.thecodeproject.com/dotnet/managed_unmanaged.asp
报错"std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >::at(unsigne