PicC 9.50 dsPIC Manual.pdf

Library FunctionsMEMCHRSynopsis#include void * memchr (const void * block, int val, size_t length)DescriptionThe memchr() function is similar to strchr() except that instead of searching null terminated strings,it searches a block of memory specified by length for a particular byte. Its arguments are a pointerto the memory to be searched, the value of the byte to be searched for, and the length of the block.A pointer to the first occurrence of that byte in the block is returned.Example#include #include unsigned int ary[] = {1, 5, 0x6789, 0x23};voidmain (void){char * cp;}cp = memchr(ary, 0x89, sizeof ary);if(!cp)printf("not found\n");elseprintf("Found at offset %u\n", cp - (char *)ary);See Alsostrchr()165