【发布时间】:2010-07-05 11:45:59
【问题描述】:
我已经尝试过OutputDebugString 函数,但大多数时候我都会收到如下错误:
错误 C2664:“OutputDebugStringA”:无法将参数 1 从“int”转换为“LPCSTR”
例子
尝试 1:
//ERROR: sprintf is unsafe. Use sprintf_s instead
int x = 4;
char s[256];
sprintf(s, "There is %d numbers", x);
OutputDebugString((LPCWSTR)s);
尝试 2:
//FAIL: outputs junk (sprintf_s doesn't understand unicode?)
int x = 4;
char s[256];
sprintf_s(s, "There is %d numbers", x);
OutputDebugString((LPCWSTR)s);
尝试 3:
//ERROR: no instance of overloaded function "sprintf_s" matches the argument list
int x = 4;
TCHAR s[256];
sprintf_s(s, "There is %d numbers", x);
OutputDebugString((LPCWSTR)s);
尝试 4:
//ERROR: no instance of overloaded function "sprintf_s" matches the argument list
int x = 4;
TCHAR s[256];
sprintf_s(s, L"There is %d numbers", x);
OutputDebugString((LPCWSTR)s);
尝试 5:
//ERROR: no instance of overloaded function "swprintf" matches the argument list
int x = 4;
TCHAR s[256];
swprintf(s, "There is %d numbers", x);
OutputDebugString(s);
尝试 6:
//ERROR: 'swprintf': function has been changed to confirm with the ISO C standard, adding an extra character count parameter
int x = 4;
TCHAR s[256];
swprintf(s, L"There is %d numbers", x);
OutputDebugString(s);
【问题讨论】:
标签: c++ visual-studio visual-studio-2010