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Rounding the cents to zero

 
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dharmaraok

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Joined: 10 Mar 2011
Posts: 30
Location: india

PostPosted: Sat Jun 21, 2014 8:25 am    Post subject: Rounding the cents to zero
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I have an dollar amount like $184.44 or $50.07 . In need round off the decimals values only to zero.

ouput should be like $184.00 and $50.00

I tried with round function and but I am not getting the correct value . Could you please let me know how can I approach this.
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Bill Woodger

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Posts: 7232

PostPosted: Sat Jun 21, 2014 1:09 pm    Post subject: Reply to: Rounding the cents to zero
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What do you want done with .50, .51 or .99?

Assuming that your data is for output-readable-by-human:

Code:
05  nice-name.
    10  nice-name-dollar-value PIC $(3)9.
    10  FILLER                 PIC X(3) VALUE ".00".

COMPUTE nice-name-dollar-value ROUDED =
        your calculaiton


The length of the field with the editing symbol is of course your choice, I've only picked something as an example
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Marso

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Posts: 1219
Location: Israel

PostPosted: Mon Jun 23, 2014 2:09 pm    Post subject: Reply to: Rounding the cents to zero
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Just for fun, I have written this small program:
Code:
       WORKING-STORAGE SECTION.
      *-----------------------*
       01  round3-var.                                   
           03 round3-num1                pic s9(10)v9(2).
           03 round3-num2                pic s9(10)v9(2).
           03 round3-dsp1                pic z(10).9(2).
           03 round3-dsp2                pic z(10).9(2).
Code:
       PROCEDURE DIVISION.
      *==================*
           MOVE 184.44 TO ROUND3-NUM1 
           PERFORM C064R-COMPUTE       
           MOVE 30451.85 TO ROUND3-NUM1
           PERFORM C064R-COMPUTE       
                                                       
       C064R-COMPUTE SECTION.                         
      *---------------------*                         
           COMPUTE ROUND3-NUM2 ROUNDED =               
               (ROUND3-NUM1 / 100) * 100               
           MOVE ROUND3-NUM1 TO ROUND3-DSP1             
           MOVE ROUND3-NUM2 TO ROUND3-DSP2             
           DISPLAY 'Num2 = (Num1 / 100) * 100      '   
               'Num1=' ROUND3-DSP1 ' Num2=' ROUND3-DSP2
                                                       
           COMPUTE ROUND3-NUM2 ROUNDED =               
               (ROUND3-NUM1 / 1000) * 1000             
           MOVE ROUND3-NUM1 TO ROUND3-DSP1             
           MOVE ROUND3-NUM2 TO ROUND3-DSP2             
           DISPLAY 'Num2 = (Num1 / 1000) * 1000    '   
               'Num1=' ROUND3-DSP1 ' Num2=' ROUND3-DSP2
                                                       
           COMPUTE ROUND3-NUM2 ROUNDED =               
               (ROUND3-NUM1 / 10000) * 10000           
           MOVE ROUND3-NUM1 TO ROUND3-DSP1             
           MOVE ROUND3-NUM2 TO ROUND3-DSP2             
           DISPLAY 'Num2 = (Num1 / 10000) * 10000  '   
               'Num1=' ROUND3-DSP1 ' Num2=' ROUND3-DSP2
           .                                           
       C064R-EXIT.                                     
           EXIT.                                       

and when executed, I received the following output:
Code:
Num2 = (Num1 / 100) * 100      Num1=       184.44 Num2=       184.40
Num2 = (Num1 / 1000) * 1000    Num1=       184.44 Num2=       184.00
Num2 = (Num1 / 10000) * 10000  Num1=       184.44 Num2=       180.00
Num2 = (Num1 / 100) * 100      Num1=     30451.85 Num2=     30451.80
Num2 = (Num1 / 1000) * 1000    Num1=     30451.85 Num2=     30451.00
Num2 = (Num1 / 10000) * 10000  Num1=     30451.85 Num2=     30450.00

Surprisingly, the second option does what you need (I say surprisingly because I expected the 1st one to work)
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Marso

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Posts: 1219
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PostPosted: Mon Jun 23, 2014 2:20 pm    Post subject:
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OK...
I have removed the ROUNDED clause from the COMPUTE.
The program contains now:
Code:
           COMPUTE ROUND3-NUM2 = (ROUND3-NUM1 / 100) * 100   
           MOVE ROUND3-NUM1 TO ROUND3-DSP1                   
           MOVE ROUND3-NUM2 TO ROUND3-DSP2                   
           DISPLAY 'Num2 = (Num1 / 100) * 100      '         
               'Num1=' ROUND3-DSP1 ' Num2=' ROUND3-DSP2       
                                                             
           COMPUTE ROUND3-NUM2 = (ROUND3-NUM1 / 1000) * 1000 
           MOVE ROUND3-NUM1 TO ROUND3-DSP1                   
           MOVE ROUND3-NUM2 TO ROUND3-DSP2                   
           DISPLAY 'Num2 = (Num1 / 1000) * 1000    '         
               'Num1=' ROUND3-DSP1 ' Num2=' ROUND3-DSP2       
                                                             
           COMPUTE ROUND3-NUM2 = (ROUND3-NUM1 / 10000) * 10000
           MOVE ROUND3-NUM1 TO ROUND3-DSP1                   
           MOVE ROUND3-NUM2 TO ROUND3-DSP2                   
           DISPLAY 'Num2 = (Num1 / 10000) * 10000  '         
               'Num1=' ROUND3-DSP1 ' Num2=' ROUND3-DSP2       
The result is more to my liking:
Code:
Num2 = (Num1 / 100) * 100      Num1=       184.44 Num2=       184.00
Num2 = (Num1 / 1000) * 1000    Num1=       184.44 Num2=       180.00
Num2 = (Num1 / 10000) * 10000  Num1=       184.44 Num2=       100.00
Num2 = (Num1 / 100) * 100      Num1=     30451.85 Num2=     30451.00
Num2 = (Num1 / 1000) * 1000    Num1=     30451.85 Num2=     30450.00
Num2 = (Num1 / 10000) * 10000  Num1=     30451.85 Num2=     30400.00

So, so far, you could use:
Code:
           COMPUTE ROUND3-NUM2 = (ROUND3-NUM1 / 100) * 100   
And, if you need to round up:
Code:
           COMPUTE ROUND3-NUM2 = ((ROUND3-NUM1 + 0.5) / 100) * 100
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Marso

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Joined: 13 Mar 2006
Posts: 1219
Location: Israel

PostPosted: Wed Jun 25, 2014 1:59 pm    Post subject: Reply to: Rounding the cents to zero
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Just found another way to do this:
Code:
    03 num1                pic s9(10)v9(2) comp-3.
    03 num2                pic s9(10)v9(2) comp-3.

    COMPUTE NUM2 = FUNCTION INTEGER (NUM1)

Test program gave:
Code:
Num2 = Function Integer (Num1) Num1=       184.44 Num2=       184.00
Num2 = Function Integer (Num1) Num1=     30451.85 Num2=     30451.00
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Bill Woodger

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Joined: 09 Mar 2011
Posts: 7232

PostPosted: Wed Jun 25, 2014 4:58 pm    Post subject: Reply to: Rounding the cents to zero
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Marso, I'm wondering what you find deficient with my solution :-)

If truncation is desired, the ROUNDED is simply removed.

However, with TS/OP not bothering to clarify...

I don't think we ever need ( x / 100 ) * 100 in COBOL, nor FUNCTION INTEGER, as it can always be done in the data.
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Raghu navaikulam

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Joined: 27 Sep 2008
Posts: 186
Location: chennai

PostPosted: Wed Jun 25, 2014 10:00 pm    Post subject: Reply to: Rounding the cents to zero
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Hi,
try this

77 NUMB1 PIC $$$$.00.

move data to numb1.
display numb1.

Regards
Raghu
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Bill Woodger

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Posts: 7232

PostPosted: Wed Jun 25, 2014 10:46 pm    Post subject: Reply to: Rounding the cents to zero
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That'd do as the target, ROUNDED or without ROUNDED to truncate. I'm not sure if the compiler is clever enough these days to do it without extra effort :-)
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Bill Woodger

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Posts: 7232

PostPosted: Fri Jun 27, 2014 11:43 pm    Post subject: Reply to: Rounding the cents to zero
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Just checked on the code for the .00, it is extra generated. Added in a couple of Marso's for comparison as well:

Code:
       01  W-DOLLARS-TO-DISP-1.
           05  W-DTD1-DOLLARS PIC 9(7).
           05  FILLER         PIC XXX VALUE ".00".

           COMPUTE W-DTD1-DOLLARS ROUNDED = W-DOLLARS-PACKED

000018  COMPUTE                                                                 
   0003EC  D204 D160 8068          MVC   352(5,13),104(8)        TS2=0         
   0003F2  F045 D160 003E          SRP   352(5,13),62(0),5       TS2=0         
   0003F8  960F D164               OI    356(13),X'0F'           TS2=4         
   0003FC  F363 8018 D161          UNPK  24(7,8),353(4,13)       W-DTD1-DOLLARS

       01  W-DOLLARS-TO-DISP-2 PIC 9(7).00.

           COMPUTE W-DOLLARS-TO-DISP-2 ROUNDED = W-DOLLARS-PACKED

000020  COMPUTE                                                                 
   00040C  D20C D160 A08F          MVC   352(13,13),143(10)      TS2=0         
   000412  D204 D170 8068          MVC   368(5,13),104(8)        TS2=16         
   000418  F045 D170 003E          SRP   368(5,13),62(0),5       TS2=16         
   00041E  9200 D170               MVI   368(13),X'00'           TS2=16         
   000422  960F D174               OI    372(13),X'0F'           TS2=20         
   000426  DE0C D160 D170          ED    352(13,13),368(13)      TS2=0         
   00042C  4740 B1BA               BC    4,442(0,11)             GN=16(000436) 
   000430  D202 D16A A03E          MVC   362(3,13),62(10)        TS2=10         
   000436                 GN=16    EQU   *                                     
   000436  D209 8028 D163          MVC   40(10,8),355(13)        W-DOLLARS-TO-DI

       01  W-DOLLARS-TO-DISP-3 PIC 9(7).99.

           COMPUTE W-DOLLARS-TO-DISP-3  =
                    FUNCTION INTEGER (W-DOLLARS-PACKED + 0.5)

000022  COMPUTE                                                                 
   000446  F8F4 D148 8068          ZAP   328(16,13),104(5,8)     TS1=0         
   00044C  FA51 D152 A043          AP    338(6,13),67(2,10)      TS1=10         
   000452  D204 D160 D152          MVC   352(5,13),338(13)       TS2=0         
   000458  D100 D164 D157          MVN   356(1,13),343(13)       TS2=4         
   00045E  F844 D158 D160          ZAP   344(5,13),352(5,13)     TS1=16         
   000464  F951 D152 C022          CP    338(6,13),34(2,12)      TS1=10         
   00046A  47B0 B214               BC    11,532(0,11)            GN=18(000490) 
   00046E  F854 D160 D158          ZAP   352(6,13),344(5,13)     TS2=0         
   000474  F050 D160 0002          SRP   352(6,13),2(0),0        TS2=0         
   00047A  D505 D160 D152          CLC   352(6,13),338(13)       TS2=0         
   000480  4780 B214               BC    8,532(0,11)             GN=19(000490) 
   000484  FA40 D158 A045          AP    344(5,13),69(1,10)      TS1=16         
   00048A  F844 D158 D158          ZAP   344(5,13),344(5,13)     TS1=16         
   000490                 GN=19    EQU   *                                     
   000490                 GN=18    EQU   *                                     
   000490  D20C D160 A082          MVC   352(13,13),130(10)      TS2=0         
   000496  F853 D170 D159          ZAP   368(6,13),345(4,13)     TS2=16         
   00049C  F040 D171 0002          SRP   369(5,13),2(0),0        TS2=17         
   0004A2  DE0C D160 D170          ED    352(13,13),368(13)      TS2=0         
   0004A8                 GN=21    EQU   *                                     
   0004A8  D209 8038 D163          MVC   56(10,8),355(13)        W-DOLLARS-TO-DI

       01  W-DOLLARS-TO-DISP-4 PIC 9(7).99.

           COMPUTE W-DOLLARS-TO-DISP-4  =
                    ((W-DOLLARS-PACKED + 0.5) / 100) * 100

000025  COMPUTE                                                                 
   0004B8  F8F4 D148 8068          ZAP   328(16,13),104(5,8)     TS1=0         
   0004BE  FA51 D152 A043          AP    338(6,13),67(2,10)      TS1=10         
   0004C4  D207 D160 D150          MVC   352(8,13),336(13)       TS2=0         
   0004CA  FD71 D160 A041          DP    352(8,13),65(2,10)      TS2=0         
   0004D0  F8F5 D148 D160          ZAP   328(16,13),352(6,13)    TS1=0         
   0004D6  FC71 D150 A041          MP    336(8,13),65(2,10)      TS1=8         
   0004DC  D20C D160 A082          MVC   352(13,13),130(10)      TS2=0         
   0004E2  F854 D170 D153          ZAP   368(6,13),339(5,13)     TS2=16         
   0004E8  DE0C D160 D170          ED    352(13,13),368(13)      TS2=0         
   0004EE                 GN=24    EQU   *                                     
   0004EE  D209 8048 D163          MVC   72(10,8),355(13)        W-DOLLARS-TO-DI



All get the same result, which is one important thing anyway.
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Marso

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PostPosted: Sat Jun 28, 2014 12:19 am    Post subject: Re: Reply to: Rounding the cents to zero
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Bill Woodger wrote:
Marso, I'm wondering what you find deficient with my solution :-)
Nothing! Was just having some geek fun. (and I think I'm not the only one!) icon_smile.gif
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