Files
odwetalibc/src/list.c
T

113 lines
2.6 KiB
C

#include <odweta/list.h>
#include <odweta/vector.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define init_error_exit(l) fprintf(stderr, "could not init list\n"); free(l); exit(EXIT_FAILURE)
list_t*
listInit() {
list_t* l = malloc(sizeof(list_t));
if (!l) {
init_error_exit(l);
}
l->data = (vector_t *)vectorInit(VECTOR);
if (!l->data) {
init_error_exit(l);
}
l->size = 0;
l->capacity = 1;
return l;
}
void
listPush(list_t* l, dataType_e type, void* element) {
vector_t* newVec;
switch (type) {
case INT:
newVec = vectorInit(INT);
vectorPush(newVec, element);
vectorPush((vector_t *)l->data, newVec);
break;
case FLOAT:
newVec = vectorInit(FLOAT);
vectorPush(newVec, element);
vectorPush((vector_t *)l->data, newVec);
break;
case CHAR:
newVec = vectorInit(CHAR);
vectorPush(newVec, element);
vectorPush((vector_t *)l->data, newVec);
break;
case VECTOR:
newVec = vectorInit(VECTOR);
vectorPush(newVec, element);
vectorPush((vector_t *)l->data, newVec);
break;
default:
perror("specify a valid vector type\n");
exit(EXIT_FAILURE);
}
l->size += 1;
if (l->size == l->capacity) {
l->capacity *= 2;
}
}
void
listPrint(list_t* l) {
fprintf(stdout, "[");
int i;
for (i = 0; i < l->size; i++) {
vector_t *ithVec = (vector_t *)vectorGetAt((vector_t *)l->data, i);
switch (ithVec->type) {
case INT:
printf("%d", *((int *)vectorGetAt(ithVec, 0)));
break;
case FLOAT:
printf("%f", *((float *)vectorGetAt(ithVec, 0)));
break;
case CHAR:
printf("'%c'", *((char *)vectorGetAt(ithVec, 0)));
break;
case VECTOR:
_printVectorRecursive(ithVec->data, 0);
break;
}
if (i < l->size - 1) {
fprintf(stdout, ", ");
}
}
fprintf(stdout, "]\n");
}
void
listCleanup(list_t* l) {
vectorCleanup((vector_t *)l->data);
free(l);
}
void*
listPop(list_t* l) {
if (l->size != 0) {
vector_t *first_ptr = (vector_t *)vectorPop((vector_t *)l->data);
void *ptr = vectorPop(first_ptr);
l->size -= 1;
if (l->size <= l->capacity / 2) l->capacity /= 2;
if (l->capacity == 0) l->capacity = 1;
return ptr;
} else {
// cannot pop when there is no value in the list
return NULL;
}
}