exc.cpp

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C++ 代码 · 共 71 行

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*                            Open Watcom Project
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// EXC.CPP -- simple exceptions class
//
// 95/01/30 -- J.W.Welch        -- defined


#include <stdarg.h>
#include <string.h>

#include "Exc.h"

//-----------------------------------------------------------------------
// Exc implementation
//-----------------------------------------------------------------------


Exc::Exc                        // CONSTRUCTOR
    ( char const* prefix        // - prefix
    , ... )                     // - NULL-terminated message list
    : _msg( 0 )
{
    char buffer[1024];          // - construction buffer
    char *bptr;                 // - buffer ptr
    va_list list;               // - list of stuff
    char const* text;           // - text to be inserted

    bptr = buffer;
    va_start( list, prefix );
    text = prefix;
    for( ; ; ) {
        bptr = strcpy( bptr, text );
        bptr += strlen( bptr );
        text = va_arg( list, char const * );
        if( 0 == text ) break;
        *bptr++ = ' ';
    }
    va_end( list );
    _msg = Str( buffer, bptr - buffer );
}