Description

pindex returns the value of a specified pfield.

Syntax

ivalue pindex ipfieldIndex

Initialization

ipfieldIndex - pfield number to query.

ivalue - value of the pfield.

Examples

Here is an example of the pindex opcode. It uses the file pindex.csd.

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
; Audio out   Audio in   No messages  MIDI in
-odac           -iadc    ; -d         -M0  ;;;RT audio I/O with MIDI in
; For Non-realtime ouput leave only the line below:
;-o pindex.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>
;Example by Anthony Kozar Dec 2006

instr 1
    inum    pcount
    index   init 1
    loop1:
        ivalue pindex index
        printf_i "p%d = %f\n", 1, index, ivalue
        index   = index + 1
    if  (index <= inum) igoto loop1
    print inum
endin

</CsInstruments>
<CsScore>
i1  0 3 40 50         ; has 5 pfields
i1  1 2 80            ; has 5 due to carry
i1  2 1 40 50 60 70   ; has 7
e
</CsScore>
</CsoundSynthesizer>

The example will produce the following output:

new alloc for instr 1:
WARNING: instr 1 uses 3 p-fields but is given 5
p1 = 1.000000
p2 = 0.000000
p3 = 3.000000
p4 = 40.000000
p5 = 50.000000
instr 1:  inum = 5.000
B  0.000 ..  1.000 T  1.000 TT  1.000 M:      0.0
new alloc for instr 1:
WARNING: instr 1 uses 3 p-fields but is given 5
p1 = 1.000000
p2 = 1.000000
p3 = 2.000000
p4 = 80.000000
p5 = 50.000000
instr 1:  inum = 5.000
B  1.000 ..  2.000 T  2.000 TT  2.000 M:      0.0
new alloc for instr 1:
WARNING: instr 1 uses 3 p-fields but is given 7
p1 = 1.000000
p2 = 2.000000
p3 = 1.000000
p4 = 40.000000
p5 = 50.000000
p6 = 60.000000
p7 = 70.000000
instr 1:  inum = 7.000
      

The warnings can be ignored, because the pfields are used indirectly through pindex instead of explicitly through p4, p5, etc.

See Also

pcount

Credits

Example by: Anthony Kozar

Dec. 2006