Method vprintf

src/common/classes/fb_string.cpp:416–463

#endif

	void AbstractString::vprintf(const char* format, va_list params)
	{
#ifndef HAVE_VSNPRINTF
#error NS: I am lazy to implement version of this routine based on plain vsprintf.
#error Please find an implementation of vsnprintf function for your platform.
#error For example, consider importing library from http://www.ijs.si/software/snprintf/
#error to Firebird extern repository
#endif
		enum { tempsize = 256 };
		char temp[tempsize];
		va_list paramsCopy;
		FB_VA_COPY(paramsCopy, params);
		int l = VSNPRINTF(temp, tempsize, format, paramsCopy);
		FB_CLOSE_VACOPY(paramsCopy);
		if (l < 0)
		{
			size_type n = sizeof(temp);
			while (true)
			{
				n *= 2;
				if (n > getMaxLength())
					n = getMaxLength();
				FB_VA_COPY(paramsCopy, params);
				l = VSNPRINTF(baseAssign(n), n + 1, format, paramsCopy);
				FB_CLOSE_VACOPY(paramsCopy);
				if (l >= 0)
					break;
				if (n >= getMaxLength())
				{
					stringBuffer[getMaxLength()] = 0;
					return;
				}
			}
			resize(l);
			return;
		}
		temp[tempsize - 1] = 0;
		if (l < tempsize) {
			memcpy(baseAssign(l), temp, l);
		}
		else
		{
			resize(l);
			FB_VA_COPY(paramsCopy, params);
			VSNPRINTF(begin(), l + 1, format, paramsCopy);
			FB_CLOSE_VACOPY(paramsCopy);
		}
	}

	unsigned int AbstractString::hash(const_pointer string, const size_type tableSize)
	{