C/C++__基础类型的（=）赋值表达式的返回值

if ((nStatus == NERR_Success) || (nStatus == ERROR_MORE_DATA))
		{
			if ((pTmpBuf = pBuf) != NULL)
			{
				//
				// Loop through the entries.
				//
				for (i = 0; (i < dwEntriesRead); i++)
				{
					assert(pTmpBuf != NULL);

					if (pTmpBuf == NULL)
					{
						fprintf(stderr, "An access violation has occurred\n");
						break;
					}
					//
					//  Print the name of the user account.
					//
					//\t--
					wprintf(L"%s\n", pTmpBuf->usri0_name);

					pTmpBuf++;
					dwTotalCount++;
				}
			}
		}

#include <iostream>
#include <cstdio>

using namespace std;

int main()
{

	int a;
	float b = 1.2;
	
	
	if ((a = b) == 1.2)
	{
		printf("ssssss\n");
	}

	return 0;

}

测试输出：

#include <iostream>
#include <cstdio>

using namespace std;

int main()
{

	int a;
	float b = 1.2;
	
	
	if ((a = b) == 1)
	{
		printf("ssssss\n");
	}

	return 0;

}