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/* valwint function */



#include "fb.h"



FBCALL int fb_WstrToInt( const FB_WCHAR *src, ssize_t len )

{

    const FB_WCHAR *p, *r;

	int radix;



	/* skip white spc */

	p = fb_wstr_SkipChar( src, len, 32 );



	len -= fb_wstr_CalcDiff( src, p );

	if( len < 1 )

		return 0;



	radix = 10;

	r = p;

	if( (len >= 2) && (*r++ == L'&') )

	{

		switch( *r++ )

		{

			case L'h':

			case L'H':

				radix = 16;

				break;

			case L'o':

			case L'O':

				radix = 8;

				break;

			case L'b':

			case L'B':

				radix = 2;

				break;



			default: /* assume octal */

				radix = 8;

				r--;

				break;

		}



		if( radix != 10 )

			p = r;

	}



	/* wcstol() saturates values outside [-2^31, 2^31)

	so use wcstoul() instead */

	return wcstoul( p, NULL, radix );

}



FBCALL int fb_WstrValInt( const FB_WCHAR *str )

{

	ssize_t len;

	int val;



	if( str == NULL )

	    return 0;



	len = fb_wstr_Len( str );

	if( len == 0 )

		val = 0;

	else

		val = fb_WstrToInt( str, len );



	return val;

}
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