错误:“表达式必须具有整数或枚举类型" [英] error : "expression must have integral or enum type"

问题描述

我遇到错误，因为str1变量中的表达式必须具有整数或枚举类型".请帮帮我.

I get error as "expression must have integral or enum type" in str1 variable. Please help me.

extern "C" __declspec(dllexport) LPCTSTR PassValue(LPTSTR str1)
{
   return str1;
}

推荐答案

您将返回在函数定义中定义的另一种类型的字符串.

请查看有关不同类型的字符串的本文(有关概述，请参见末尾的表):
C ++字符串完整指南，第一部分- Win32字符编码 [

You are returning a different type of string that is defined in your function definition.

Look at this article about the different types of strings (see the table at the end for an overview):
The Complete Guide to C++ Strings, Part I - Win32 Character Encodings[^]

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