ftfind

Abstract

Find an element in a table

Description

ftfind finds the index of an element in table. If the element is not found it returns -1

Syntax

iindex ftfind itab, ival, itolerance=1e-12
kindex ftfind ktab, kval, itolerance=1e-12

Arguments

• itab / ktab: A table
• ival / kval: The value to find
• itolerance: A tolerance value. When using floats it is not recommended to check for equality but to check if two values are close enough

Output

• iindex / kindex: the index of the value inside the table, or -1 if the value is not found

Execution Time

• Init
• Performance

Examples

<CsoundSynthesizer>
<CsOptions>
--nosound
; -odac
</CsOptions>

<CsInstruments>

/*

Description
===========

ftfind return the index of the first element in a table which is equal 
to the given number. If the number is not found, the return value is -1

Syntax
======

    kidx ftfind ktabnum, kvalue, iepsilon=1e-12
    iidx ftfind itabnum, ivalue, iepsilon=1e-12

*/

ksmps = 64
nchnls = 2
0dbfs  = 1

instr 10
    itabnum ftfill 0, 0.5, 0.3, 10, 0.8
    iidx ftfind itabnum, 0.3
    prints "iidx: %d \n", iidx

    turnoff
endin

</CsInstruments>

<CsScore>

i 10 0 0.1

</CsScore>
</CsoundSynthesizer>

See also

• findarray

Credits

Eduardo Moguillansky, 2021