PicC 9.50 dsPIC Manual.pdf

Library FunctionsMEMCMPSynopsis#include int memcmp (const void * s1, const void * s2, size_t n)DescriptionThe memcmp() function compares two blocks of memory, of length n, and returns a signed valuesimilar to strncmp(). Unlike strncmp() the comparison does not stop on a null character. The ASCIIcollating sequence is used for the comparison, but the effect of including non-ASCII characters inthe memory blocks on the sense of the return value is indeterminate. Testing for equality is alwaysreliable.Example#include #include voidmain (void){int buf[10], cow[10], i;buf[0] = 1;buf[2] = 4;cow[0] = 1;cow[2] = 5;buf[1] = 3;cow[1] = 3;i = memcmp(buf, cow, 3*sizeof(int));if(i < 0)printf("less than\n");else if(i > 0)printf("Greater than\n");else167