PicC 9.50 dsPIC Manual.pdf

Library FunctionsMALLOCSynopsis#include void * malloc (size_t cnt)DescriptionThe malloc() function attempts to allocate cnt bytes of memory from the "heap", the dynamic memoryallocation area. If successful, it returns a pointer to the block, otherwise zero is returned. Thememory so allocated may be freed with free(), or changed in size via realloc(). The malloc() routinecalls sbrk() to obtain memory, and is in turn called by calloc(). The malloc() function does not clearthe memory it obtains, unlike calloc().Example#include #include #include voidmain (void){char * cp;}cp = malloc(80);if(!cp)printf("Malloc failed\n");else {strcpy(cp, "a string");printf("block = ’%s’\n", cp);free(cp);}163