SW006013 Microchip Technology, SW006013 Datasheet - Page 119

• Manufacturer Part Number: SW006013
• Description: MPLAB C Compiler For DsPIC DSCs
• Manufacturer: Microchip Technology
• Series: DsPIC30F/33Fr
• Type: MPLAB® C Compilerr

Specifications of SW006013

• Supported Families: DsPIC30F, DsPIC33F
• Core Architecture: DsPIC
• Kit Contents: Software And Docs
• Mcu Supported Families: DsPIC30F And DsPIC33F
• Tool Function: Compiler
• Tool Type: Compiler
• Processor Series: dsPIC
• Lead Free Status / RoHS Status: na
• For Use With/related Products: dSPIC DSCs
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

© 2008 Microchip Technology Inc.
memchr (Continued)
memcmp
Description:
Include:
Prototype:
Arguments:
Return Value:
Remarks:
Example:
if (ptr != NULL)
}
Output:
buf1 : What time is it?
i found at position 7
y not found
Compare the contents of two buffers.
<string.h>
int memcmp(const void *s1, const void *s2, size_t n);
s1
s2
n
Returns a positive number if s1 is greater than s2, zero if s1 is equal to
s2, or a negative number if s1 is less than s2.
This function compares the first n characters in s1 to the first n charac-
ters in s2 and returns a value indicating whether the buffers are less
than, equal to or greater than each other.
#include <string.h> /* memcmp
#include <stdio.h>
int main(void)
{
printf("\n");
ptr = memchr(buf1, ch2, 50);
{
}
else
char buf1[50] = "Where is the time?";
char buf2[50] = "Where did they go?";
char buf3[50] = "Why?";
int res;
printf("buf1 : %s\n", buf1);
printf("buf2 : %s\n", buf2);
printf("buf3 : %s\n\n", buf3);
res = memcmp(buf1, buf2, 6);
if (res < 0)
else if (res == 0)
else
res = ptr - buf1 + 1;
printf("%c found at position %d\n", ch2, res);
printf("%c not found\n", ch2);
printf("buf1 comes before buf2\n");
printf("6 characters of buf1 and buf2 "
printf("buf2 comes before buf1\n");
"are equal\n");
first buffer
second buffer
number of characters to compare
/* for printf */
*/
DS51456E-page 115