---
name: "PGAEncodeIntegerAsGrayCode"
section: "3"
platform: "linux"
package: "pgapack"
version: "1.0.0.1-3"
release: "Debian 3.1 (Sarge)"
platforms: ["linux"]
url: "https://new.carta.tech/PGAEncodeIntegerAsGrayCode/3"
---

# PGAEncodeIntegerAsGrayCode(3)

encodes a real value as a binary reflected Gray code sequence

## NAME

PGAEncodeIntegerAsGrayCode - encodes a real value as a binary reflected Gray code sequence

## INPUT PARAMETERS

- ctx

  \- context variable

- p

  \- string index

- pop

  \- symbolic constant of the population the string is in

- start

  \- starting bit position in p to encode val in

- end

  \- ending bit position in p to encode val in

- val

  \- the integer value to be represented as a binary reflected Gray code sequence

## OUTPUT PARAMETERS

- side

  \-effect.

## SYNOPSIS

```
#include "pgapack.h"
void  PGAEncodeIntegerAsGrayCode(ctx, p, pop, start, end, val)
PGAContext *ctx
int p
int pop
int start
int end
int val
```

## LOCATION

evaluate.c

## EXAMPLE

```
Encode an integer v in 20 bits in bit positions  0--19 in string p in
population PGA_NEWPOP using Gray code.
PGAContext *ctx;
int v, p;
:
PGAEncodeIntegerAsGrayCode(ctx, p, PGA_NEWPOP, 0, 19, 7);
```