PostgreSQL Source Code: src/include/utils/cash.h Source File

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00001 /*
00002  * src/include/utils/cash.h
00003  *
00004  *
00005  * cash.h
00006  * Written by D'Arcy J.M. Cain
00007  *
00008  * Functions to allow input and output of money normally but store
00009  *  and handle it as 64 bit integer.
00010  */
00011 
00012 #ifndef CASH_H
00013 #define CASH_H
00014 
00015 #include "fmgr.h"
00016 
00017 typedef int64 Cash;
00018 
00019 /* Cash is pass-by-reference if and only if int64 is */
00020 #define DatumGetCash(X)     ((Cash) DatumGetInt64(X))
00021 #define CashGetDatum(X)     Int64GetDatum(X)
00022 #define PG_GETARG_CASH(n)   DatumGetCash(PG_GETARG_DATUM(n))
00023 #define PG_RETURN_CASH(x)   return CashGetDatum(x)
00024 
00025 extern Datum cash_in(PG_FUNCTION_ARGS);
00026 extern Datum cash_out(PG_FUNCTION_ARGS);
00027 extern Datum cash_recv(PG_FUNCTION_ARGS);
00028 extern Datum cash_send(PG_FUNCTION_ARGS);
00029 
00030 extern Datum cash_eq(PG_FUNCTION_ARGS);
00031 extern Datum cash_ne(PG_FUNCTION_ARGS);
00032 extern Datum cash_lt(PG_FUNCTION_ARGS);
00033 extern Datum cash_le(PG_FUNCTION_ARGS);
00034 extern Datum cash_gt(PG_FUNCTION_ARGS);
00035 extern Datum cash_ge(PG_FUNCTION_ARGS);
00036 extern Datum cash_cmp(PG_FUNCTION_ARGS);
00037 
00038 extern Datum cash_pl(PG_FUNCTION_ARGS);
00039 extern Datum cash_mi(PG_FUNCTION_ARGS);
00040 extern Datum cash_div_cash(PG_FUNCTION_ARGS);
00041 
00042 extern Datum cash_mul_flt8(PG_FUNCTION_ARGS);
00043 extern Datum flt8_mul_cash(PG_FUNCTION_ARGS);
00044 extern Datum cash_div_flt8(PG_FUNCTION_ARGS);
00045 
00046 extern Datum cash_mul_flt4(PG_FUNCTION_ARGS);
00047 extern Datum flt4_mul_cash(PG_FUNCTION_ARGS);
00048 extern Datum cash_div_flt4(PG_FUNCTION_ARGS);
00049 
00050 extern Datum cash_mul_int8(PG_FUNCTION_ARGS);
00051 extern Datum int8_mul_cash(PG_FUNCTION_ARGS);
00052 extern Datum cash_div_int8(PG_FUNCTION_ARGS);
00053 
00054 extern Datum cash_mul_int4(PG_FUNCTION_ARGS);
00055 extern Datum int4_mul_cash(PG_FUNCTION_ARGS);
00056 extern Datum cash_div_int4(PG_FUNCTION_ARGS);
00057 
00058 extern Datum cash_mul_int2(PG_FUNCTION_ARGS);
00059 extern Datum int2_mul_cash(PG_FUNCTION_ARGS);
00060 extern Datum cash_div_int2(PG_FUNCTION_ARGS);
00061 
00062 extern Datum cashlarger(PG_FUNCTION_ARGS);
00063 extern Datum cashsmaller(PG_FUNCTION_ARGS);
00064 
00065 extern Datum cash_words(PG_FUNCTION_ARGS);
00066 
00067 extern Datum cash_numeric(PG_FUNCTION_ARGS);
00068 extern Datum numeric_cash(PG_FUNCTION_ARGS);
00069 
00070 extern Datum int4_cash(PG_FUNCTION_ARGS);
00071 extern Datum int8_cash(PG_FUNCTION_ARGS);
00072 
00073 #endif   /* CASH_H */
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cash.h
