调试断言失败 [英] Debug Assertion Failure

问题描述

以下功能使用mfc中的对话框执行打开和读取操作.我正在调试断言失败，并且我试图找出原因.请帮助我在实际问题所在的地方找到它.

Hi,

The following function performs open and read operation, using dialog box in mfc. i''m getting debug assertion failure , and i''m trying to figure it out. Please help me to find it where the actual problem is ...

void CBIOS_CustomizationDlg::OnBnClickedRomButton()
{
	// TODO: Add your control notification handler code here
this->UpdateData();
	unsigned char *rom_Buffer;
	unsigned int num_bytes_read;
	ULONGLONG bios_file_size;
	unsigned char bytes;
	CFile f;
LPCTSTR strFilter = L"ROM Files (*.rom)|*.rom|All Files (*.*)|*.*||";
	LPCTSTR tet = L".rom";
	CFileDialog FileDlg(TRUE, tet, NULL, 0, strFilter);

	if( FileDlg.DoModal() == IDOK )
	{
		if( f.Open(FileDlg.GetFileName(), CFile::typeBinary) == FALSE )
			return;
		bios_file_size = f.GetLength();
		rom_Buffer = (UCHAR *)(malloc((size_t)bios_file_size));
		//CArchive ar(&f, CArchive::load);

				num_bytes_read = f.Read( rom_Buffer, (UINT)bios_file_size);
		/*for(UINT i=0; i <= (UINT)bios_file_size; i++){
			bytes = *(rom_Buffer + i);
		}*/
		AfxMessageBox(num_bytes_read);
		//ar.Close();
	}
	else
		return;

	f.Close();
	this->UpdateData(FALSE);
	free(rom_Buffer);




}

[edit]已添加代码块-OriginalGriff [/edit]

[edit]Code block added - OriginalGriff[/edit]

推荐答案

AfxMessageBox(num_bytes_read);

如果您阅读文档 [

If you read the documentation[^] you will notice that your call is incorrect. Unless num_bytes_read just happens to match the id of one of your string resources.

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