Index: uspace/lib/posix/stdlib.c
===================================================================
--- uspace/lib/posix/stdlib.c	(revision ae1c11b416226055e511d648291c668a6081774f)
+++ uspace/lib/posix/stdlib.c	(revision ceebf0ab7dc6386d19bdd8adc9db0bbbe1274709)
@@ -1,4 +1,5 @@
 /*
  * Copyright (c) 2011 Petr Koupy
+ * Copyright (c) 2011 Jiri Zarevucky
  * All rights reserved.
  *
@@ -36,4 +37,5 @@
 
 #include "stdlib.h"
+#include "common.h"
 
 /**
@@ -47,4 +49,5 @@
 {
 	// TODO
+	not_implemented();
 }
 
@@ -57,5 +60,5 @@
 {
 	// TODO
-	return 0;
+	not_implemented();
 }
 
@@ -69,5 +72,41 @@
 {
 	// TODO
-	return 0;
+	not_implemented();
+}
+
+/**
+ * 
+ * @param nptr
+ * @param endptr
+ * @return
+ */
+float posix_strtof(const char *restrict nptr, char **restrict endptr)
+{
+	// TODO
+	not_implemented();
+}
+
+/**
+ * 
+ * @param nptr
+ * @param endptr
+ * @return
+ */
+double posix_strtod(const char *restrict nptr, char **restrict endptr)
+{
+	// TODO
+	not_implemented();
+}
+
+/**
+ * 
+ * @param nptr
+ * @param endptr
+ * @return
+ */
+long double posix_strtold(const char *restrict nptr, char **restrict endptr)
+{
+	// TODO
+	not_implemented();
 }
 
Index: uspace/lib/posix/stdlib.h
===================================================================
--- uspace/lib/posix/stdlib.h	(revision ae1c11b416226055e511d648291c668a6081774f)
+++ uspace/lib/posix/stdlib.h	(revision ceebf0ab7dc6386d19bdd8adc9db0bbbe1274709)
@@ -1,4 +1,5 @@
 /*
  * Copyright (c) 2011 Petr Koupy
+ * Copyright (c) 2011 Jiri Zarevucky
  * All rights reserved.
  *
@@ -59,8 +60,17 @@
 extern char *posix_realpath(const char *restrict name, char *restrict resolved);
 
+/* decimal to native floating point conversion */
+extern float posix_strtof(const char *restrict nptr, char **restrict endptr);
+extern double posix_strtod(const char *restrict nptr, char **restrict endptr);
+extern long double posix_strtold(const char *restrict nptr, char **restrict endptr);
+
 #ifndef LIBPOSIX_INTERNAL
 	#define qsort posix_qsort
 	#define getenv posix_getenv
 	#define realpath posix_realpath
+	
+	#define strtof posix_strtof
+	#define strtod posix_strtod
+	#define strtold posix_strtold
 #endif