diff --git a/autotest/Atoi/Atoi.cpp b/autotest/Atoi/Atoi.cpp
index 54c578ef4..4b8a6962d 100644
--- a/autotest/Atoi/Atoi.cpp
+++ b/autotest/Atoi/Atoi.cpp
@@ -157,5 +157,15 @@ CONSOLE_APP_MAIN
 	DDUMP(CParser("123456123").ReadNumber64(8));
 	DDUMP(CParser("123456123").ReadNumber64(16));
 	
+	DDUMP(Atoi(""));
+	DDUMP(Atoi("x"));
+	DDUMP(Atoi("123"));
+	DDUMP(Atoi("-123"));
+
+	DDUMP(Atoi64(""));
+	DDUMP(Atoi64("x"));
+	DDUMP(Atoi64("123"));
+	DDUMP(Atoi64("-123"));
+	
 	CheckLogEtalon();
 }
diff --git a/autotest/Atoi/Etalon.log b/autotest/Atoi/Etalon.log
index 7c56b1623..bd6c000ca 100644
--- a/autotest/Atoi/Etalon.log
+++ b/autotest/Atoi/Etalon.log
@@ -56,3 +56,11 @@ e = (1,1): number is too big
 CParser("123456123").ReadNumber64() = 123456123
 CParser("123456123").ReadNumber64(8) = 21912659
 CParser("123456123").ReadNumber64(16) = 591749411
+Atoi("") = 0
+Atoi("x") = 0
+Atoi("123") = 123
+Atoi("-123") = -123
+Atoi64("") = 0
+Atoi64("x") = 0
+Atoi64("123") = 123
+Atoi64("-123") = -123
diff --git a/uppsrc/Core/Convert.cpp b/uppsrc/Core/Convert.cpp
index e34e15c27..d229ca548 100644
--- a/uppsrc/Core/Convert.cpp
+++ b/uppsrc/Core/Convert.cpp
@@ -133,6 +133,13 @@ int ScanInt(const char *ptr)
 	return ScanInt<char, byte, uint32, int, 10>(x, ptr, overflow) && !overflow ? x : Null;
 }
 
+int Atoi(const char *ptr)
+{
+	int x;
+	bool overflow = false;
+	return ScanInt<char, byte, uint32, int, 10>(x, ptr, overflow) && !overflow ? x : 0;
+}
+
 int64 ScanInt64(const char *ptr, const char **endptr)
 {
 	int64 x;
@@ -150,6 +157,13 @@ int64 ScanInt64(const char *ptr)
 	return ScanInt<char, byte, uint64, int64, 10>(x, ptr, overflow) && !overflow ? x : Null;
 }
 
+int64 Atoi64(const char *ptr)
+{
+	int64 x;
+	bool overflow = false;
+	return ScanInt<char, byte, uint64, int64, 10>(x, ptr, overflow) && !overflow ? x : 0;
+}
+
 Value StrIntValue(const char *s)
 {
 	if(s && *s) {
diff --git a/uppsrc/Core/Convert.h b/uppsrc/Core/Convert.h
index d353a3ef3..833490e6f 100644
--- a/uppsrc/Core/Convert.h
+++ b/uppsrc/Core/Convert.h
@@ -17,6 +17,9 @@ int64         ScanInt64(const char *ptr, const char **endptr, int radix);
 int64         ScanInt64(const char *ptr, const char **endptr);
 int64         ScanInt64(const char *ptr);
 
+int           Atoi(const char *ptr);
+int64         Atoi64(const char *ptr);
+
 double        ScanDouble(const char *ptr, const char **endptr, bool accept_comma);
 double        ScanDouble(const wchar *ptr, const wchar **endptr, bool accept_comma);
 double        ScanDouble(const char *ptr, const char **endptr);