From 781e1e6264794ec0fddccd37a76f7a78a3fa8b09 Mon Sep 17 00:00:00 2001 From: Tycho Date: Wed, 13 Aug 2014 13:03:56 +0100 Subject: Fixed Integer pasing warnings in CraftingRecipies.cpp --- src/StringUtils.h | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) (limited to 'src/StringUtils.h') diff --git a/src/StringUtils.h b/src/StringUtils.h index 142aaf59b..56ac83942 100644 --- a/src/StringUtils.h +++ b/src/StringUtils.h @@ -99,6 +99,68 @@ extern int GetBEInt(const char * a_Mem); /// Writes four bytes to the specified memory location so that they interpret as BigEndian int extern void SetBEInt(char * a_Mem, Int32 a_Value); +/// Parses any integer type. Checks bounds and +template +bool StringToInteger(AString a_str, T& a_Num) +{ + size_t i = 0; + T positive = true; + T result = 0; + if (a_str[0] == '+') + { + i++; + } + else if (a_str[0] == '-') + { + i++; + positive = false; + } + if (positive) + { + for(; i <= a_str.size(); i++) + { + if ((a_str[i] <= '0') || (a_str[i] >= '9')) + { + return false; + } + if (std::numeric_limits::max() / 10 < result) + { + return false; + } + result *= 10; + T digit = a_str[i] - '0'; + if (std::numeric_limits::max() - digit < result) + { + return false; + } + result += digit; + } + } + else + { + for(; i <= a_str.size(); i++) + { + if ((a_str[i] <= '0') || (a_str[i] >= '9')) + { + return false; + } + if (std::numeric_limits::min() / 10 > result) + { + return false; + } + result *= 10; + T digit = a_str[i] - '0'; + if (std::numeric_limits::min() + digit > result) + { + return false; + } + result -= digit; + } + } + a_Num = result; + return true; +} + // If you have any other string helper functions, declare them here -- cgit v1.2.3