mylib.c~

#include <stdio.h>
#include <stdlib.h>
#include "mylib.h"
#include <assert.h>
#include <ctype.h>

/*Function that allocates memory to a pointer.
 *Parameters: s, which is how much memory you want to allocate
 *Prints to standard error if you have a failure
 *Returns a pointer
 */
void *emalloc(size_t s){
    void *result = malloc(s);
    if(NULL == result) {
        fprintf(stderr, "memory allocation failure");
        exit(EXIT_FAILURE);
    }
    return result;
}
/*Function that changes the amount of memory that is allocated to a pointer.
 *Param: s, which is how much memory you want to allocate
 *Param: *p, which is a pointer 
 */
void *remalloc(void *p, size_t s) {
    void *result = realloc(p, s);
    if(NULL == result) {
        fprintf(stderr, "memory allocation failure");
        exit(EXIT_FAILURE);
    }
    return result;
}
/*Function that gets the word from the file. 
 *Param:s, which is is the string 
 *Param:limit, the maximum size a string can be
 *Param:*stream, which is where it wants to get the string from
 */
int getword(char *s, int limit, FILE *stream) {
    int c;
    char *w = s;
    assert(limit > 0 && s != NULL && stream != NULL);
    /* skip to the start of the word */
    while (!isalnum(c = getc(stream)) && EOF != c)
        ;
    if (EOF == c) {
        return EOF;
    } else if (--limit > 0) { /* reduce limit by 1 to allow for the \0 */
        *w++ = tolower(c);
    }
    while (--limit > 0) {
        if (isalnum(c = getc(stream))) {
            *w++ = tolower(c);
        } else if ('\'' == c) {
            limit++;
        } else {
            break;
        }
    }
    *w = '\0';
    return w - s;
}