PicC 9.50 dsPIC Manual.pdf

Library FunctionsREALLOCSynopsis#include void * realloc (void * ptr, size_t cnt)DescriptionThe realloc() function frees the block of memory at ptr, which should have been obtained by a previouscall to malloc(), calloc() or realloc(), then attempts to allocate cnt bytes of dynamic memory,and if successful copies the contents of the block of memory located at ptr into the new block.At most, realloc() will copy the number of bytes which were in the old block, but if the newblock is smaller, will only copy cnt bytes.Example#include #include #include voidmain (void){char * cp;}cp = malloc(255);if(gets(cp))cp = realloc(cp, strlen(cp)+1);printf("buffer now %d bytes long\n", strlen(cp)+1);See Alsomalloc(), calloc()187