SW500009 Microchip Technology, SW500009 Datasheet - Page 255

• Manufacturer Part Number: SW500009
• Description: HI-TECH FOR DSPIC/PIC24
• Manufacturer: Microchip Technology
• Type: Compilerr
• Series: PIC24 & DsPICr

Specifications of SW500009

• Supported Families: PIC24
• Core Architecture: PIC, DsPIC
• Software Edition: Standard
• Kit Contents: Software And Docs
• Tool Type: Compiler
• Mcu Supported Families: PIC24 MCUs And DsPIC DSCs
• Lead Free Status / RoHS Status: Not applicable / RoHS Compliant
• For Use With/related Products: DSPIC3X/PIC24
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 025; 778-1003; 778-1003

Library Functions
SRAND
Synopsis
Description
The srand() function initializes the random number generator accessed by rand() with the given
seed. This provides a mechanism for varying the starting point of the pseudo-random sequence
yielded by rand(). On the Z80, a good place to get a truly random seed is from the refresh register.
Otherwise timing a response from the console will do, or just using the system time.
Example
See Also
rand()
#include <stdlib.h>
void srand (unsigned int seed)
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
void
main (void)
{
}
time_t toc;
int i;
time(&toc);
srand((int)toc);
for(i = 0 ; i != 10 ; i++)
putchar(’\n’);
printf("%d\t", rand());
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