1 files changed, 44 insertions, 0 deletions
diff --git a/functions_reference/ref_ft_atoi_base.c b/functions_reference/ref_ft_atoi_base.c
new file mode 100644
index 0000000..b2a4231
--- /dev/null
+++ b/functions_reference/ref_ft_atoi_base.c
@@ -0,0 +1,44 @@
+#include "libasm_test.h"
+
+static bool
+valid_base(char *base)
+{
+	if (strlen(base) < 2)
+		return false;
+	while (*base)
+	{
+		if (isspace(*base) || *base == '+' || *base == '-')
+			return false;
+		for (int i = 1; base[i]; i++)
+			if (base[i] == *base)
+				return false;
+		base++;
+	}
+	return true;
+}
+
+int
+ref_ft_atoi_base(char *str, char *base)
+{
+	long int nb;
+	int radix;
+	bool is_negative;
+
+	if (!valid_base(base))
+		return 0;
+	while (isspace(*str))
+		str++;
+	is_negative = false;
+	while (*str == '+' || *str == '-')
+		if (*str++ == '-')
+			is_negative = !is_negative;
+	radix = strlen(base);
+	nb = 0;
+	while (*str && strchr(base, *str) != NULL)
+	{
+		nb *= radix;
+		nb += strchr(base, *str) - base;
+		str++;
+	}
+	return is_negative ? -nb : nb;
+}