diff options
| author | Paul Buetow <paul@buetow.org> | 2008-11-07 22:11:06 +0000 |
|---|---|---|
| committer | Paul Buetow <paul@buetow.org> | 2008-11-07 22:11:06 +0000 |
| commit | a46655f67043af257e70715903badf9d4321c4de (patch) | |
| tree | 556997ba868ac106c6f92703e6e35875e4872dc2 /src/data/stack.c | |
| parent | fbff89d91c2a13155423bd83d2bbefd5d6891e23 (diff) | |
one step further for arrays.
Diffstat (limited to 'src/data/stack.c')
| -rw-r--r-- | src/data/stack.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/data/stack.c b/src/data/stack.c index f1da22a..00d5d88 100644 --- a/src/data/stack.c +++ b/src/data/stack.c @@ -93,6 +93,14 @@ stack_pop(Stack *p_stack) { return (p_val); } +void* +stack_top(Stack *p_stack) { + if (stack_empty(p_stack)) + return (NULL); + + return (p_stack->p_first->p_val); +} + void stack_clear(Stack *p_stack) { for (;!stack_empty(p_stack); stack_pop(p_stack)); |