From 413e1490036a59d58a1072275ddaaf3421abbbe0 Mon Sep 17 00:00:00 2001
From: hugogogo <hugogogo@protonmail.com>
Date: Thu, 7 May 2026 11:46:03 +0200
Subject: [PATCH] adding labs

---
 Makefile                 |  1 +
 includes/libft.h         |  3 ++-
 srcs/ft_itoa_static.c    | 14 ++++++--------
 srcs/ft_labs.c           |  8 ++++++++
 srcs/ft_nbrlen.c         |  4 +++-
 srcs/ft_strjoin_static.c | 11 +++++++++--
 srcs/ft_strlen.c         |  4 ++--
 7 files changed, 31 insertions(+), 14 deletions(-)
 create mode 100644 srcs/ft_labs.c

diff --git a/Makefile b/Makefile
index 3ec6217..f005c55 100644
--- a/Makefile
+++ b/Makefile
@@ -122,6 +122,7 @@ SRCS	=	ft_memset.c \
 			pf_utils.c \
 			\
 			ft_abs.c \
+			ft_labs.c \
 			ft_fabs.c \
 			ft_greater.c \
 			ft_smaller.c \
diff --git a/includes/libft.h b/includes/libft.h
index 3c34427..f80a35c 100644
--- a/includes/libft.h
+++ b/includes/libft.h
@@ -61,7 +61,7 @@ size_t ft_strjoin_static(char *dst, size_t dst_size, const char **srcs, size_t n
 char *ft_strtrim(char const *s1, char const *set);
 char **ft_split(char const *s, char c);
 char *ft_itoa(long int n);
-char *ft_itoa_static(long int nbr, char *buffer, size_t nbr_len);
+char *ft_itoa_static(long int nbr, char *buffer, size_t buff_len);
 char *ft_utoa(unsigned long int n);
 char *ft_strmapi(char const *s, char (*f)(unsigned int, char));
 
@@ -124,6 +124,7 @@ void ft_putnbrendl(int n);
 void ft_putnbrendl_fd(int n, int fd);
 char *ft_concat_free(char *str1, char *str2);
 int ft_abs(int n);
+long int ft_labs(long int n);
 double ft_fabs(double n);
 int ft_greater(int a, int b);
 int ft_smaller(int a, int b);
diff --git a/srcs/ft_itoa_static.c b/srcs/ft_itoa_static.c
index 2f8189f..3402d3e 100644
--- a/srcs/ft_itoa_static.c
+++ b/srcs/ft_itoa_static.c
@@ -55,21 +55,19 @@ char *ft_itoa_static(long int nbr, char *buffer, size_t buff_len)
 	}
 
 	// Determine if the number is negative
-	is_negative = ft_sign_f(nbr);
-	if (is_negative)
-	{
-		nbr = -nbr; // Make nbr positive for processing
-	}
+	is_negative = nbr < 0;
+	nbr = ft_labs(nbr);
 
 	// Write the null terminator at the end
-	buffer[buff_len] = '\0';
+	buffer[buff_len - 1] = '\0';
 
 	// Write the digits in reverse order
-	i = buff_len - 1;
+	i = buff_len - 2;
 	do
 	{
-		buffer[i--] = (nbr % 10) + '0';
+		buffer[i] = (nbr % 10) + '0';
 		nbr /= 10;
+		i--;
 	} while (nbr != 0);
 
 	// Add the negative sign if needed
diff --git a/srcs/ft_labs.c b/srcs/ft_labs.c
new file mode 100644
index 0000000..2203c33
--- /dev/null
+++ b/srcs/ft_labs.c
@@ -0,0 +1,8 @@
+#include "libft.h"
+
+long int ft_labs(long int n)
+{
+	if (n < 0)
+		n *= -1;
+	return (n);
+}
diff --git a/srcs/ft_nbrlen.c b/srcs/ft_nbrlen.c
index 28ac6ff..ea6b3c0 100644
--- a/srcs/ft_nbrlen.c
+++ b/srcs/ft_nbrlen.c
@@ -7,10 +7,12 @@
 size_t ft_nbrlen(int nbr)
 {
     int len;
+    int is_negative;
 
+    is_negative = nbr < 0;
     len = (nbr < 0) ? 2 : 1;
     while (nbr /= 10)
         len++;
 
-    return len;
+    return len + is_negative;
 }
\ No newline at end of file
diff --git a/srcs/ft_strjoin_static.c b/srcs/ft_strjoin_static.c
index d8c71dd..0849a1a 100644
--- a/srcs/ft_strjoin_static.c
+++ b/srcs/ft_strjoin_static.c
@@ -15,12 +15,19 @@
 
 size_t ft_strjoin_static(char *dst, size_t dst_size, const char **srcs, size_t n)
 {
+    size_t total_len;
+    size_t i;
+
     // Calculate total length needed
-    size_t total_len = 0;
-    for (size_t i = 0; i < n; i++)
+    total_len = 0;
+    i = 0;
+    while (i < n)
     {
         total_len += ft_strlen(srcs[i]);
+        ft_printf("--ft_strlen(srcs[%i]):%i--", i, ft_strlen(srcs[i]));
+        i++;
     }
+    ft_printf("{dst_size:%li,srcs[0]:%s,srcs[1]:%s,total_len:%i}", dst_size, srcs[0], srcs[1], total_len); // debug
 
     // Check if buffer is large enough (include space for '\0')
     if (total_len + 1 > dst_size)
diff --git a/srcs/ft_strlen.c b/srcs/ft_strlen.c
index 8af143b..12fcf53 100644
--- a/srcs/ft_strlen.c
+++ b/srcs/ft_strlen.c
@@ -11,12 +11,12 @@
 /* ************************************************************************** */
 
 /*
-** return length of of string
+** return length of of string, excluding the terminal '\0'
 */
 
 #include "libft.h"
 
-size_t		ft_strlen(const char *str)
+size_t ft_strlen(const char *str)
 {
 	size_t i;