233         immutable srcLen = source.length;  variable
234         if (srcLen == 0)
237         immutable blocks = srcLen / 3;
238         immutable remain = srcLen % 3;
316         immutable srcLen = source.length;  variable
317         if (srcLen == 0)
320         immutable blocks = srcLen / 3;
321         immutable remain = srcLen % 3;
368                 bufptr - buffer.ptr == encodeLength(srcLen),
402         immutable srcLen = source.length;  variable
403         if (srcLen == 0)
406         immutable blocks = srcLen / 3;
407         immutable remain = srcLen % 3;
480         immutable srcLen = source.length;  variable
481         if (srcLen == 0)
484         immutable blocks = srcLen / 3;
485         immutable remain = srcLen % 3;
540                 pcount == encodeLength(srcLen),
997         immutable srcLen = source.length;  variable
998         if (srcLen == 0)
1001             enforce(srcLen % 4 == 0, new Base64Exception("Invalid length of encoded data"));
1003         immutable blocks = srcLen / 4;
1029             immutable remain = srcLen % 4;
1077         immutable srcLen = source.length;  variable
1078         if (srcLen == 0)
1081             enforce(srcLen % 4 == 0, new Base64Exception("Invalid length of encoded data"));
1083         immutable blocks = srcLen / 4;
1110             immutable remain = srcLen % 4;
1130                 (bufptr - buffer.ptr) >= (decodeLength(srcLen) - 2),
1168         immutable srcLen = source.length;  variable
1169         if (srcLen == 0)
1172             enforce(srcLen % 4 == 0, new Base64Exception("Invalid length of encoded data"));
1174         immutable blocks = srcLen / 4;
1203             immutable remain = srcLen % 4;
1257         immutable srcLen = source.length;  variable
1258         if (srcLen == 0)
1261             enforce(srcLen % 4 == 0, new Base64Exception("Invalid length of encoded data"));
1263         immutable blocks = srcLen / 4;
1293             immutable remain = srcLen % 4;
1315                 pcount >= (decodeLength(srcLen) - 2),