sprintf
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## sprintf

sprintf — printf-style formatted output to a string variable.

## Description

sprintf write printf-style formatted output to a string variable, similarly to the C function sprintf(). sprintf runs at i-time only.

## Syntax

    Sdst sprintf Sfmt, xarg1[, xarg2[, ... ]]

## Initialization

Sfmt -- format string, has the same format as in printf() and other similar C functions, except length modifiers (l, ll, h, etc.) are not supported. The following conversion specifiers are allowed:

- d, i, o, u, x, X, e, E, f, F, g, G, c, s

xarg1, xarg2, ... -- input arguments (max. 30) for format, should be i-rate for all conversion specifiers except %s, which requires a string argument. Integer formats like %d round the input values to the nearest integer.

## Performance

Sdst -- output string variable

## Examples

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

Example 779. Example of the sprintf opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

    <CsoundSynthesizer>
    <CsOptions>
    ; Select audio/midi flags here according to platform
    -odac      ;;;realtime audio out
    ;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
    ; For Non-realtime ouput leave only the line below:
    ; -o sprintf.wav -W ;;; for file output any platform
    </CsOptions>
    <CsInstruments>

    sr = 44100
    ksmps = 32
    nchnls = 2
    0dbfs  = 1

    ;the file "impuls20.aiff" can be found in /manual/examples
    instr 1

    ifn = 20
    Sname sprintf "impuls%02d.aiff", ifn
    Smsg  sprintf "The file name is: '%s'", Sname
          puts    Smsg, 1
    asig  soundin Sname
          outs asig, asig

    endin
    </CsInstruments>
    <CsScore>

    i 1 0 1
    e
    </CsScore>
    </CsoundSynthesizer>

Its output should include lines like this:

    The file name is: 'impuls20.aiff'
    soundin: opened 'impuls20.aiff'

## See Also

sprintfk

## Credits

Author: Istvan Varga
2005

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