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set_constraint_handler_s - 注册捕获 _s 版本函数访问异常 |
set_constraint_handler_s:注册捕获 _s 版本函数访问异常
函数原型:
头文件:
#include <cstdlib>
命名空间:
std
参数:
handler:constraint_handler_t 类型的函数指针
返回值:
返回执行 set_constraint_handler_s 之前的 _s 版本函数的错误处理函数
例子:
void _RTLENTRY MyConstraintHandler(const char *msg, void *ptr, errno_t error)
{
UnicodeString s;
s.sprintf(L"函数出错:%hs,错误编号:%d", msg, error);
Application->MessageBox(s.c_str(), Application->Title.c_str(), MB_OK|MB_ICONEXCLAMATION);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
constraint_handler_t OldHandler = set_constraint_handler_s(MyConstraintHandler);
std::swprintf_s(NULL, 0, L"The value is: %lf\r\n", M_PI);
set_constraint_handler_s(OldHandler);
}
//--------------------------------------------------------------------------- |
兼容性:
相关链接:
• abort_handler_s • ignore_handler_s • constraint_handler_t • set_constraint_handler_s
• abort • atexit • atexit_t • exit • system
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