From 33c0a9586e4f0673dbdbdf62eb02791933c660df Mon Sep 17 00:00:00 2001
From: Jonas 'Sortie' Termansen <sortie@maxsi.org>
Date: Wed, 9 Nov 2011 23:48:26 +0100
Subject: [PATCH] Added atoi(3).

---
 libmaxsi/c/hsrc/stdlib.h |  1 +
 libmaxsi/hsrc/string.h   |  1 +
 libmaxsi/string.cpp      | 14 ++++++++++++++
 3 files changed, 16 insertions(+)

diff --git a/libmaxsi/c/hsrc/stdlib.h b/libmaxsi/c/hsrc/stdlib.h
index 921439f7..fd6bf59d 100644
--- a/libmaxsi/c/hsrc/stdlib.h
+++ b/libmaxsi/c/hsrc/stdlib.h
@@ -45,6 +45,7 @@ typedef int div_t, ldiv_t, lldiv_t;
 
 /* TODO: WEXITSTATUS, WIFEXITED, WIFSIGNALED, WIFSTOPPED, WNOHANG, WSTOPSIG, WTERMSIG, WUNTRACED is missing here */
 
+int atoi(const char*);
 void exit(int);
 void _Exit(int status);
 void free(void*);
diff --git a/libmaxsi/hsrc/string.h b/libmaxsi/hsrc/string.h
index c3bb407d..1c9ebf09 100644
--- a/libmaxsi/hsrc/string.h
+++ b/libmaxsi/hsrc/string.h
@@ -39,6 +39,7 @@ namespace Maxsi
 		int Compare(const char* A, const char* B);
 		int CompareN(const char* A, const char* B, size_t MaxLength);
 		int StartsWith(const char* Haystack, const char* Needle);
+		int ToInt(const char* str);
 
 		int ConvertUInt8T(uint8_t num, char* dest);
 		int ConvertUInt16(uint16_t num, char* dest);
diff --git a/libmaxsi/string.cpp b/libmaxsi/string.cpp
index 174c46d2..88d1b5ff 100644
--- a/libmaxsi/string.cpp
+++ b/libmaxsi/string.cpp
@@ -90,6 +90,20 @@ namespace Maxsi
 			return Result;
 		}
 
+		DUAL_FUNCTION(int, atoi, ToInt, (const char* str))
+		{
+			bool negative = ( *str == '-' );
+			if ( negative ) { str++; }
+			int result = 0;
+			int c;
+			while ( (c = *str++) != 0 )
+			{
+				if ( c < '0' || '9' < c ) { return result; }
+				result = result * 10 + c - '0';
+			}
+			return (negative) ? -result : result;
+		}
+
 #if 0
 		char* Combine(size_t NumParameters, ...)
 		{