C

Generating Random ASCII Strings

See more PRNG Examples

Demonstrates how to generate random us-ascii strings. C

#include <C_CkPrng.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkPrng fortuna;
    BOOL bDigits;
    BOOL bLowercase;
    BOOL bUppercase;
    int i;

    success = FALSE;

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    success = FALSE;

    fortuna = CkPrng_Create();

    // Generate random strings having only lowercase chars (a-z)
    // Disallow digits and uppercase and only allow lowercase
    bDigits = FALSE;
    bUppercase = FALSE;
    bLowercase = TRUE;

    printf("-- only lowercase alpha (a-z)\n");
    for (i = 1; i <= 10; i++) {
        // Generate 20-character strings.
        printf("%s\n",CkPrng_randomString(fortuna,20,bDigits,bLowercase,bUppercase));
    }

    // Allow both lowercase and uppercase alpha chars
    bUppercase = TRUE;
    printf("-- lower and uppercase alpha (a-zA-Z)\n");
    for (i = 1; i <= 10; i++) {
        // Generate 20-character strings.
        printf("%s\n",CkPrng_randomString(fortuna,20,bDigits,bLowercase,bUppercase));
    }

    // Allow digits (0-9)
    bDigits = TRUE;
    printf("-- digits and lower/uppercase alpha (0-9a-zA-Z)\n");
    for (i = 1; i <= 10; i++) {
        // Generate 20-character strings.
        printf("%s\n",CkPrng_randomString(fortuna,20,bDigits,bLowercase,bUppercase));
    }

    // Allow only digits (0-9)
    bUppercase = FALSE;
    bLowercase = FALSE;
    printf("-- only digits (0-9)\n");
    for (i = 1; i <= 10; i++) {
        // Generate 20-character strings.
        printf("%s\n",CkPrng_randomString(fortuna,20,bDigits,bLowercase,bUppercase));
    }



    CkPrng_Dispose(fortuna);

    }