From 79e3fdb620f0901aa44fa5de95acbd42b6c51668 Mon Sep 17 00:00:00 2001
From: lohhiiccc <loic@lohic.dev>
Date: Mon, 22 Jun 2026 18:18:19 +0200
Subject: [PATCH] feat: ft_list_remove_if

---
 Makefile                |   3 +-
 src/ft_list_remove_if.s | 171 ++++++++++++++++++++++++++++++++++++++++
 src/libasm.h            |   1 +
 3 files changed, 174 insertions(+), 1 deletion(-)
 create mode 100644 src/ft_list_remove_if.s

diff --git a/Makefile b/Makefile
index 585be28..0e5ed79 100644
--- a/Makefile
+++ b/Makefile
@@ -22,7 +22,8 @@ SRCS=$(SRC_DIR)/ft_strlen.s \
      $(SRC_DIR)/ft_atoibase.s \
      $(SRC_DIR)/ft_list_push_front.s \
      $(SRC_DIR)/ft_list_size.s \
-     $(SRC_DIR)/ft_list_sort.s
+     $(SRC_DIR)/ft_list_sort.s \
+     $(SRC_DIR)/ft_list_remove_if.s
 
 OBJS=$(patsubst $(SRC_DIR)/%.s,$(OBJ_DIR)/%.o,$(SRCS))
 DEPS=$(OBJS:.o=.d)
diff --git a/src/ft_list_remove_if.s b/src/ft_list_remove_if.s
new file mode 100644
index 0000000..a88dc07
--- /dev/null
+++ b/src/ft_list_remove_if.s
@@ -0,0 +1,171 @@
+global ft_list_remove_if
+extern free
+
+struc list
+	.data	resq 1
+	.next	resq 1
+endstruc
+
+section .text
+
+
+;void	ft_list_remove_if(t_list **begin_list, void *data_ref,
+;		int (*cmp)(void *, void *), void (*free_fct)(void *))
+;{
+;	t_list	*cur;
+;	t_list	*prev;
+;	t_list	*to_del;
+;
+;	if (!begin_list || !cmp)
+;		return;
+;	cur = *begin_list;
+;	prev = NULL;
+;	while (cur)
+;	{
+;		if (cmp(cur->data, data_ref) == 0)
+;		{
+;			to_del = cur;
+;			if (prev)
+;				prev->next = cur->next;
+;			else
+;				*begin_list = cur->next;
+;			cur = cur->next;
+;			if (free_fct)
+;				free_fct(to_del->data);
+;			free(to_del);
+;		}
+;		else
+;		{
+;			prev = cur;
+;			cur = cur->next;
+;		}
+;	}
+;}
+
+; void	ft_list_remove_if(...)
+; rdi: 	t_list	**begin_list
+; rsi: 	void	*data_ref
+; rdx: 	int	(*cmp)(void *, void *)
+; rcx: 	void	(*free_fct)(void)
+
+; iter on list and remove current if cmp return 0
+; free_fct can be NULL
+ft_list_remove_if:
+	
+	; test begin_list
+	test	rdi, rdi
+	jz	.ret
+
+	; test cmp
+	test	rdx, rdx
+	jz	.ret
+
+	; rax = *begin_list
+	mov	rax, [rdi]
+
+	; prev: r11
+	xor	r11, r11
+	;cur = r8
+	mov	r8, rax
+
+	;while cur
+.L1:
+	test	r8, r8
+	jz	.ret
+
+	push	rdi	; begin_list
+	push	r8	; cur
+	push	r11	; prev
+	push	rdx	; cmp
+	push	rcx	; free_fct
+	push	rsi	; data_ref
+
+	mov	rdi, [r8 + list.data]
+	; rsi is already set as data_ref
+	call	rdx
+
+	pop	rsi	; data_ref
+	pop	rcx	;free_fct
+	pop	rdx	; cmp
+	pop	r11	; prev
+	pop	r8	; cur
+	pop	rdi	; begin_list
+
+	; if ret of cmp == 0 goto del
+	test	rax, rax
+	jz	.del
+
+.no_del:
+	mov	r11, r8
+	mov	r8, [r8 + list.next]
+	jmp	.L1
+
+.del:
+	; to_del
+	mov	r9, r8
+
+	; r10 = cur->next
+	mov	r10, [r8 + list.next]
+
+	; if prev
+	test	r11, r11
+	jz	.no_prev
+	; prev->next = cur->next
+	mov	[r11 + list.next], r10
+
+	jmp	.end_if_prev
+	;else (no prev)
+.no_prev:
+	; *begin_list = cur->next
+	mov	[rdi], r10
+
+.end_if_prev:
+	mov	r8, r10
+
+	test	rcx, rcx
+	jnz	.free_p
+.free:
+
+	push	rdi	; begin_list
+	push	r8	; cur
+	push	r11	; prev
+	push	rdx	; cmp
+	push	rcx	; free_fct
+	push	rsi	; data_ref
+	
+	mov	rdi, r9
+	call	free wrt ..plt
+
+	pop	rsi	; data_ref
+	pop	rcx	;free_fct
+	pop	rdx	; cmp
+	pop	r11	; prev
+	pop	r8	; cur
+	pop	rdi	; begin_list
+
+	jmp	.L1
+
+.ret:
+	ret
+
+.free_p:
+
+	push	r9
+	push	rdi	; begin_list
+	push	r8	; cur
+	push	r11	; prev
+	push	rdx	; cmp
+	push	rcx	; free_fct
+	push	rsi	; data_ref
+	
+	mov	rdi, [rdi + list.data]
+	call	rcx
+
+	pop	rsi	; data_ref
+	pop	rcx	;free_fct
+	pop	rdx	; cmp
+	pop	r11	; prev
+	pop	r8	; cur
+	pop	rdi	; begin_list
+	pop	r9
+	jmp	.free
diff --git a/src/libasm.h b/src/libasm.h
index a3eb359..cf159a0 100644
--- a/src/libasm.h
+++ b/src/libasm.h
@@ -24,6 +24,7 @@ int	ft_atoibase(char *str, char *base);
 void	ft_list_push_front(t_list **begin_list, void *data);
 int	ft_list_size(t_list *begin_list);
 void	ft_list_sort(t_list **begin_list, int (*cmp)(void *, void *));
+void	ft_list_remove_if(t_list **begin_list, void *data_ref, int (*cmp)(void *, void *), void (*free_fct)(void *));
 
 #ifdef __cplusplus
 }