Function formatPGVersionNumber

src/fe_utils/string_utils.c:323–348

* Format a Postgres version number (in the PG_VERSION_NUM integer format * returned by PQserverVersion()) as a string. This exists mainly to * encapsulate knowledge about two-part vs. three-part version numbers. * * For reentrancy, caller must supply the buffer the string is put in. * Recommended size of the buffer is 32 bytes. * * Returns address of 'buf', as a notational convenience. */

 * Returns address of 'buf', as a notational convenience.
 */
char *
formatPGVersionNumber(int version_number, bool include_minor,
					  char *buf, size_t buflen)
{
	if (version_number >= 100000)
	{
		/* New two-part style */
		if (include_minor)
			snprintf(buf, buflen, "%d.%d", version_number / 10000,
					 version_number % 10000);
		else
			snprintf(buf, buflen, "%d", version_number / 10000);
	}
	else
	{
		/* Old three-part style */
		if (include_minor)
			snprintf(buf, buflen, "%d.%d.%d", version_number / 10000,
					 (version_number / 100) % 100,
					 version_number % 100);
		else
			snprintf(buf, buflen, "%d.%d", version_number / 10000,
					 (version_number / 100) % 100);
	}
	return buf;
}


/*