diff --git a/storm/String.hpp b/storm/String.hpp
index 572db5a..83e8c2b 100644
--- a/storm/String.hpp
+++ b/storm/String.hpp
@@ -15,11 +15,11 @@ char* SStrChrR(char* string, char search);
 
 const char* SStrChrR(const char* string, char search);
 
-int32_t SStrCmp(const char* string1, const char* string2, size_t maxchars);
+int32_t SStrCmp(const char* string1, const char* string2, size_t maxchars = STORM_MAX_STR);
 
-int32_t SStrCmpI(const char* string1, const char* string2, size_t maxchars);
+int32_t SStrCmpI(const char* string1, const char* string2, size_t maxchars = STORM_MAX_STR);
 
-size_t SStrCopy(char* dest, const char* source, size_t destsize);
+size_t SStrCopy(char* dest, const char* source, size_t destsize = STORM_MAX_STR);
 
 char* SStrDupA(const char* string, const char* filename, uint32_t linenumber);
 
diff --git a/test/String.cpp b/test/String.cpp
index f51e47e..ce955bb 100644
--- a/test/String.cpp
+++ b/test/String.cpp
@@ -3,127 +3,153 @@
 #include "test/Test.hpp"
 
 TEST_CASE("SStrChr", "[string]") {
+    auto string = "foobar";
+
     SECTION("finds first character when it exists at start of string") {
-        auto string = "foobar";
-        auto search = 'f';
-        auto result = SStrChr(string, search);
+        auto result = SStrChr(string, 'f');
         REQUIRE(result == string);
     }
 
     SECTION("finds first character when it exists in middle of string") {
-        auto string = "foobar";
-        auto search = 'b';
-        auto result = SStrChr(string, search);
+        auto result = SStrChr(string, 'b');
         REQUIRE(result == string + 3);
     }
 
     SECTION("finds first character when it exists at end of string") {
-        auto string = "foobar";
-        auto search = 'r';
-        auto result = SStrChr(string, search);
+        auto result = SStrChr(string, 'r');
         REQUIRE(result == string + 5);
     }
 
     SECTION("returns nullptr when character does not exist in string") {
-        auto string = "foobar";
-        auto search = 'z';
-        auto result = SStrChr(string, search);
+        auto result = SStrChr(string, 'z');
         REQUIRE(result == nullptr);
     }
 
     SECTION("returns nullptr when string is empty") {
-        auto string = "";
-        auto search = 'z';
-        auto result = SStrChr(string, search);
+        auto result = SStrChr("", 'z');
+        REQUIRE(result == nullptr);
+    }
+
+    SECTION("returns nullptr when character is 0") {
+        auto result = SStrChr(string, '\0');
         REQUIRE(result == nullptr);
     }
 }
 
 TEST_CASE("SStrChrR", "[string]") {
+    auto string = "ffoobbaarr";
+
     SECTION("finds last character when it exists at start of string") {
-        auto string = "ffoobbaarr";
-        auto search = 'f';
-        auto result = SStrChrR(string, search);
+        auto result = SStrChrR(string, 'f');
         REQUIRE(result == string + 1);
     }
 
     SECTION("finds last character when it exists in middle of string") {
-        auto string = "ffoobbaarr";
-        auto search = 'b';
-        auto result = SStrChrR(string, search);
+        auto result = SStrChrR(string, 'b');
         REQUIRE(result == string + 5);
     }
 
     SECTION("finds last character when it exists at end of string") {
-        auto string = "ffoobbaarr";
-        auto search = 'r';
-        auto result = SStrChrR(string, search);
+        auto result = SStrChrR(string, 'r');
         REQUIRE(result == string + 9);
     }
 
     SECTION("finds last character when it exists at start and end of string") {
         auto string = "ffoobbaarrff";
-        auto search = 'f';
-        auto result = SStrChrR(string, search);
+        auto result = SStrChrR(string, 'f');
         REQUIRE(result == string + 11);
     }
 
     SECTION("returns nullptr when character does not exist in string") {
-        auto string = "ffoobbaarr";
-        auto search = 'z';
-        auto result = SStrChrR(string, search);
+        auto result = SStrChrR(string, 'z');
         REQUIRE(result == nullptr);
     }
 
     SECTION("returns nullptr when string is empty") {
-        auto string = "";
-        auto search = 'z';
-        auto result = SStrChrR(string, search);
+        auto result = SStrChrR("", 'z');
+        REQUIRE(result == nullptr);
+    }
+
+    SECTION("returns nullptr when character is 0") {
+        auto result = SStrChrR(string, '\0');
         REQUIRE(result == nullptr);
     }
 }
 
 TEST_CASE("SStrCmp", "[string]") {
     SECTION("compares two strings that exactly match correctly") {
-        auto compare = SStrCmp("foo", "foo", STORM_MAX_STR);
+        auto compare = SStrCmp("foo", "foo");
         REQUIRE(compare == 0);
     }
 
     SECTION("compares two strings that partially match correctly") {
-        auto compare1 = SStrCmp("bar", "foobar", STORM_MAX_STR);
-        auto compare2 = SStrCmp("foobar", "bar", STORM_MAX_STR);
+        auto compare1 = SStrCmp("bar", "foobar");
+        auto compare2 = SStrCmp("foobar", "bar");
         REQUIRE(compare1 < 0);
         REQUIRE(compare2 > 0);
     }
 
     SECTION("compares two strings that do not match correctly") {
-        auto compare = SStrCmp("bar", "xyzzy", STORM_MAX_STR);
+        auto compare = SStrCmp("bar", "xyzzy");
         REQUIRE(compare < 0);
     }
+
+    SECTION("only compares up to maxchars") {
+        auto compare = SStrCmp("donkeykong", "donkeypinnochio", 6);
+        REQUIRE(compare == 0);
+    }
+
+    SECTION("compare is case sensitive") {
+        auto compare = SStrCmp("dingdong", "dInGdOnG");
+        REQUIRE(compare != 0);
+    }
 }
 
 TEST_CASE("SStrCmpI", "[string]") {
     SECTION("compares two strings that exactly match correctly") {
-        auto compare = SStrCmpI("foo", "foo", STORM_MAX_STR);
+        auto compare = SStrCmpI("foo", "foo");
         REQUIRE(compare == 0);
     }
 
     SECTION("compares two strings that match with differing case correctly") {
-        auto compare = SStrCmpI("foo", "foO", STORM_MAX_STR);
+        auto compare = SStrCmpI("foo", "FoO");
         REQUIRE(compare == 0);
     }
 
+    SECTION("compares two strings that partially match correctly") {
+        auto compare1 = SStrCmpI("bar", "foobar");
+        auto compare2 = SStrCmpI("foobar", "bar");
+        REQUIRE(compare1 < 0);
+        REQUIRE(compare2 > 0);
+    }
+
     SECTION("compares two strings that do not match correctly") {
-        auto compare = SStrCmpI("bar", "xyzzy", STORM_MAX_STR);
+        auto compare = SStrCmpI("bar", "xyzzy");
         REQUIRE(compare < 0);
     }
+
+    SECTION("only compares up to maxchars") {
+        auto compare = SStrCmpI("donkeykong", "donkeypinnochio", 6);
+        REQUIRE(compare == 0);
+    }
 }
 
 TEST_CASE("SStrDupA", "[string]") {
     SECTION("duplicates string correctly") {
         auto string1 = "foo bar";
         auto string2 = SStrDupA(string1, __FILE__, __LINE__);
-        auto compare = SStrCmp(string1, string2, STORM_MAX_STR);
+        auto compare = SStrCmp(string1, string2);
+        auto newPtr = string1 != string2;
+        SMemFree(string2);
+
+        REQUIRE(compare == 0);
+        REQUIRE(newPtr == true);
+    }
+
+    SECTION("duplicates empty string correctly") {
+        auto string1 = "";
+        auto string2 = SStrDupA(string1, __FILE__, __LINE__);
+        auto compare = SStrCmp(string1, string2);
         auto newPtr = string1 != string2;
         SMemFree(string2);
 
@@ -152,112 +178,144 @@ TEST_CASE("SStrHashHT", "[string]") {
 
 TEST_CASE("SStrLen", "[string]") {
     SECTION("calculates string length correctly") {
-        auto length = SStrLen("foo");
-        REQUIRE(length == 3);
+        REQUIRE(SStrLen("foo") == 3);
+    }
+
+    SECTION("calculates empty string length correctly") {
+        REQUIRE(SStrLen("") == 0);
     }
 }
 
 TEST_CASE("SStrLower", "[string]") {
     SECTION("rewrites uppercase string to lowercase correctly") {
-        auto upper = "FOOBAR";
-        char* lower = static_cast<char*>(SMemAlloc(SStrLen(upper) + 1, __FILE__, __LINE__, 0x0));
-        SStrCopy(lower, upper, STORM_MAX_STR);
-        SStrLower(lower);
-        auto compare = SStrCmp(lower, "foobar", SStrLen(lower));
-        SMemFree(lower);
+        char string[] = "FOOBAR";
+        SStrLower(string);
 
-        REQUIRE(!compare);
+        REQUIRE(!SStrCmp(string, "foobar"));
     }
 
     SECTION("rewrites lowercase string to lowercase correctly") {
-        auto lower1 = "foobar";
-        char* lower2 = static_cast<char*>(SMemAlloc(SStrLen(lower1) + 1, __FILE__, __LINE__, 0x0));
-        SStrCopy(lower2, lower1, STORM_MAX_STR);
-        SStrLower(lower2);
-        auto compare = SStrCmp(lower2, "foobar", SStrLen(lower2));
-        SMemFree(lower2);
+        char string[] = "foobar";
+        SStrLower(string);
 
-        REQUIRE(!compare);
+        REQUIRE(!SStrCmp(string, "foobar"));
+    }
+
+    SECTION("does nothing on empty string") {
+        char string[] = "";
+        SStrLower(string);
+
+        REQUIRE(!SStrCmp(string, ""));
     }
 }
 
 TEST_CASE("SStrPack", "[string]") {
     SECTION("truncates dest correctly when first byte in source is null") {
-        char dest[10] = { 0 };
+        char dest[10] = {};
         auto source = "\0foobar";
-        auto length = SStrPack(dest, source, 10);
+        auto length = SStrPack(dest, source, sizeof(dest));
+
         REQUIRE(length == 0);
-        REQUIRE(!SStrCmp(dest, "", SStrLen("")));
+        REQUIRE(!SStrCmp(dest, ""));
     }
 
     SECTION("truncates dest correctly when middle byte in source is null") {
-        char dest[10] = { 0 };
+        char dest[10] = {};
         auto source = "foo\0bar";
-        auto length = SStrPack(dest, source, 10);
+        auto length = SStrPack(dest, source, sizeof(dest));
+
         REQUIRE(length == 3);
-        REQUIRE(!SStrCmp(dest, "foo", SStrLen("foo")));
+        REQUIRE(!SStrCmp(dest, "foo"));
     }
 
     SECTION("does not truncate dest when source has no early null byte") {
-        char dest[10] = { 0 };
+        char dest[10] = {};
         auto source = "foobar";
-        auto length = SStrPack(dest, source, 10);
+        auto length = SStrPack(dest, source, sizeof(dest));
+
         REQUIRE(length == 6);
-        REQUIRE(!SStrCmp(dest, "foobar", SStrLen("foobar")));
+        REQUIRE(!SStrCmp(dest, "foobar"));
+    }
+
+    SECTION("appends to target string") {
+        char dest[10] = "who";
+        auto length = SStrPack(dest, "dis", sizeof(dest));
+
+        REQUIRE(length == 6);
+        REQUIRE(!SStrCmp(dest, "whodis"));
+    }
+
+    SECTION("truncates when dest size is not large enough") {
+        char dest[5] = "who";
+        auto length = SStrPack(dest, "dis", sizeof(dest));
+
+        REQUIRE(length == 4);
+        REQUIRE(!SStrCmp(dest, "whod"));
     }
 }
 
 TEST_CASE("SStrPrintf", "[string]") {
     SECTION("fills dest with formatted string") {
-        char dest[100] = { 0 };
-        auto format = "%s - %s";
-        auto length = SStrPrintf(dest, 100, format, "foo", "bar");
+        char dest[100] = {};
+        auto length = SStrPrintf(dest, sizeof(dest), "%s - %s", "foo", "bar");
+
         REQUIRE(length == 9);
-        REQUIRE(!SStrCmp(dest, "foo - bar", SStrLen("foo - bar")));
+        REQUIRE(!SStrCmp(dest, "foo - bar"));
+    }
+
+    SECTION("fills dest with int") {
+        char dest[100] = {};
+        auto length = SStrPrintf(dest, sizeof(dest), "%d", 69);
+
+        REQUIRE(length == 2);
+        REQUIRE(!SStrCmp(dest, "69"));
     }
 
     SECTION("fills dest with empty string") {
-        char dest[100] = { 0 };
-        auto format = "";
-        auto length = SStrPrintf(dest, 100, format);
+        char dest[100] = {};
+        auto length = SStrPrintf(dest, sizeof(dest), "");
+
         REQUIRE(length == 0);
-        REQUIRE(!SStrCmp(dest, "", SStrLen("")));
+        REQUIRE(!SStrCmp(dest, ""));
     }
+
+    SECTION("truncates when dest size is not large enough") {
+        char dest[4] = {};
+        auto length = SStrPrintf(dest, sizeof(dest), "%s", "wowzers");
+
+        REQUIRE(length == 3);
+        REQUIRE(!SStrCmp(dest, "wow"));
+    }
+
 }
 
 TEST_CASE("SStrStr", "[string]") {
+    auto string = "foobar";
+
     SECTION("finds substring when it exists at end of string") {
-        auto string = "foobar";
         auto search = "bar";
         auto substring = SStrStr(string, search);
-        REQUIRE(!SStrCmp(search, substring, SStrLen(search)));
+        REQUIRE(substring == string + 3);
     }
 
     SECTION("finds substring when it exists at start of string") {
-        auto string = "foobar";
         auto search = "foo";
         auto substring = SStrStr(string, search);
-        REQUIRE(!SStrCmp(search, substring, SStrLen(search)));
+        REQUIRE(substring == string);
     }
 
     SECTION("finds substring when search is empty") {
-        auto string = "foobar";
-        auto search = "";
-        auto substring = SStrStr(string, search);
-        REQUIRE(!SStrCmp(string, substring, SStrLen(string)));
+        auto substring = SStrStr(string, "");
+        REQUIRE(substring == string);
     }
 
     SECTION("returns nullptr when search does not exist in string") {
-        auto string = "foobar";
-        auto search = "xyzzy";
-        auto substring = SStrStr(string, search);
+        auto substring = SStrStr(string, "xyzzy");
         REQUIRE(substring == nullptr);
     }
 
     SECTION("returns nullptr when given empty string") {
-        auto string = "";
-        auto search = "bar";
-        auto substring = SStrStr(string, search);
+        auto substring = SStrStr("", "bar");
         REQUIRE(substring == nullptr);
     }
 }
@@ -265,36 +323,36 @@ TEST_CASE("SStrStr", "[string]") {
 TEST_CASE("SStrTokenize", "[string]") {
     SECTION("finds all tokens in comma-delimited string") {
         auto string = "foo,bar,baz";
-        char buffer[100] = { 0 };
+        char buffer[100] = {};
         const char* tokens[] = { "foo", "bar", "baz" };
 
         for (auto& token : tokens) {
-            SStrTokenize(&string, buffer, 1000, " ,", nullptr);
-            REQUIRE(!SStrCmp(buffer, token, STORM_MAX_STR));
+            SStrTokenize(&string, buffer, sizeof(buffer), " ,", nullptr);
+            REQUIRE(!SStrCmp(buffer, token));
         }
     }
 
     SECTION("finds all tokens in comma-and-whitespace-delimited string") {
         auto string = "foo , bar , baz";
-        char buffer[100] = { 0 };
+        char buffer[100] = {};
         const char* tokens[] = { "foo", "bar", "baz" };
 
         for (auto& token : tokens) {
-            SStrTokenize(&string, buffer, 1000, " ,", nullptr);
-            REQUIRE(!SStrCmp(buffer, token, STORM_MAX_STR));
+            SStrTokenize(&string, buffer, sizeof(buffer), " ,", nullptr);
+            REQUIRE(!SStrCmp(buffer, token));
         }
     }
 
     SECTION("finds no tokens empty string") {
         auto string = "";
-        char buffer[100] = { 0 };
-        SStrTokenize(&string, buffer, 1000, " ,", nullptr);
-        REQUIRE(!SStrCmp(buffer, "", STORM_MAX_STR));
+        char buffer[100] = {};
+        SStrTokenize(&string, buffer, sizeof(buffer), " ,", nullptr);
+        REQUIRE(!SStrCmp(buffer, ""));
     }
 
     SECTION("identifies quoted tokens") {
         auto string = "foo bar \"baz bazinga\" bodonkers \"donga dongs\"";
-        char buffer[100] = { 0 };
+        char buffer[100] = {};
         std::pair<const char*, int> tokens[] = {
             std::make_pair("foo", 0),
             std::make_pair("bar", 0),
@@ -305,7 +363,7 @@ TEST_CASE("SStrTokenize", "[string]") {
 
         for (auto& token : tokens) {
             int quoted = 0;
-            SStrTokenize(&string, buffer, 1000, " \"", &quoted);
+            SStrTokenize(&string, buffer, sizeof(buffer), " \"", &quoted);
             std::string result = buffer;
             REQUIRE(result == token.first);
             REQUIRE(quoted == token.second);
@@ -314,7 +372,7 @@ TEST_CASE("SStrTokenize", "[string]") {
 
     SECTION("doesn't identify quoted tokens if excluded from whitespace") {
         auto string = "foo bar \"baz bazinga\" bodonkers \"donga dongs\"";
-        char buffer[100] = { 0 };
+        char buffer[100] = {};
         std::pair<const char*, int> tokens[] = {
             std::make_pair("foo", 0),
             std::make_pair("bar", 0),
@@ -327,7 +385,7 @@ TEST_CASE("SStrTokenize", "[string]") {
 
         for (auto& token : tokens) {
             int quoted = 0;
-            SStrTokenize(&string, buffer, 1000, " ", &quoted);
+            SStrTokenize(&string, buffer, sizeof(buffer), " ", &quoted);
             std::string result = buffer;
             REQUIRE(result == token.first);
             REQUIRE(quoted == token.second);
@@ -337,130 +395,137 @@ TEST_CASE("SStrTokenize", "[string]") {
 
 TEST_CASE("SStrToFloat", "[string]") {
     SECTION("converts empty string to float") {
-        auto string = "";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("");
         REQUIRE(result == 0.0f);
     }
 
     SECTION("converts whitespace string to float") {
-        auto string = " ";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat(" \t\r\n");
+        REQUIRE(result == 0.0f);
+    }
+
+    SECTION("converts random characters to float") {
+        auto result = SStrToFloat("abcd");
         REQUIRE(result == 0.0f);
     }
 
     SECTION("converts string with positive int to float") {
-        auto string = "123";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("123");
         REQUIRE(result == 123.0f);
     }
 
     SECTION("converts string with negative int to float") {
-        auto string = "-123";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("-123");
         REQUIRE(result == -123.0f);
     }
 
     SECTION("converts string with positive float to float") {
-        auto string = "1.5";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("1.5");
         REQUIRE(result == 1.5f);
     }
 
     SECTION("converts string with negative float to float") {
-        auto string = "-1.5";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("-1.5");
         REQUIRE(result == -1.5f);
     }
 
     SECTION("converts string with float and positive exponent to float") {
-        auto string = "1.5e3";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("1.5e3");
         REQUIRE(result == 1500.0f);
     }
 
+    SECTION("converts string with float and positive full form exponent to float") {
+        auto result = SStrToFloat("1.5e+3");
+        REQUIRE(result == 1500.0f);
+    }
+
+    SECTION("converts string with capital exponent to float") {
+        auto result = SStrToFloat("1.5E+3");
+        REQUIRE(result == 1500.0f);
+    }
+
+    SECTION("converts string with random added letter to float") {
+        auto result = SStrToFloat("1.5g3");
+        REQUIRE(result == 1.5f);
+    }
+
     SECTION("converts string with float and negative exponent to float") {
-        auto string = "1500.0e-3";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("1500.0e-3");
         REQUIRE(result == 1.5f);
     }
 
     SECTION("converts string with zero to float") {
-        auto string = "0";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("0");
         REQUIRE(result == 0.0f);
     }
 
     SECTION("converts string with leading zero to float") {
-        auto string = "01";
-        auto result = SStrToFloat(string);
+        auto result = SStrToFloat("01");
         REQUIRE(result == 1.0f);
     }
 }
 
 TEST_CASE("SStrToInt", "[string]") {
     SECTION("converts empty string to int") {
-        auto string = "";
-        auto result = SStrToInt(string);
+        auto result = SStrToInt("");
         REQUIRE(result == 0);
     }
 
     SECTION("converts whitespace string to int") {
-        auto string = " ";
-        auto result = SStrToInt(string);
+        auto result = SStrToInt(" ");
+        REQUIRE(result == 0);
+    }
+
+    SECTION("converts random characters to int") {
+        auto result = SStrToInt("abcd");
         REQUIRE(result == 0);
     }
 
     SECTION("converts string with positive number to int") {
-        auto string = "123";
-        auto result = SStrToInt(string);
+        auto result = SStrToInt("123");
         REQUIRE(result == 123);
     }
 
     SECTION("converts string with negative number to int") {
-        auto string = "-123";
-        auto result = SStrToInt(string);
+        auto result = SStrToInt("-123");
         REQUIRE(result == -123);
     }
 
     SECTION("converts string with zero to int") {
-        auto string = "0";
-        auto result = SStrToInt(string);
+        auto result = SStrToInt("0");
         REQUIRE(result == 0);
     }
 
     SECTION("converts string with leading zero to int") {
-        auto string = "01";
-        auto result = SStrToInt(string);
+        auto result = SStrToInt("01");
         REQUIRE(result == 1);
     }
 
     SECTION("converts string with two whitespace-separated numbers to int") {
-        auto string = "123 456";
-        auto result = SStrToInt(string);
+        auto result = SStrToInt("123 456");
         REQUIRE(result == 123);
     }
 }
 
 TEST_CASE("SStrUpper", "[string]") {
     SECTION("rewrites lowercase string to uppercase correctly") {
-        auto lower = "foobar";
-        auto upper = static_cast<char*>(SMemAlloc(SStrLen(lower) + 1, __FILE__, __LINE__, 0x0));
-        SStrCopy(upper, lower, STORM_MAX_STR);
-        SStrUpper(upper);
-        auto compare = SStrCmp(upper, "FOOBAR", SStrLen(upper));
-        SMemFree(upper);
+        char string[] = "foobar";
+        SStrUpper(string);
 
-        REQUIRE(!compare);
+        REQUIRE(!SStrCmp(string, "FOOBAR"));
     }
 
     SECTION("rewrites uppercase string to uppercase correctly") {
-        auto upper1 = "FOOBAR";
-        auto upper2 = static_cast<char*>(SMemAlloc(SStrLen(upper1) + 1, __FILE__, __LINE__, 0x0));
-        SStrCopy(upper2, upper1, STORM_MAX_STR);
-        SStrUpper(upper2);
-        auto compare = SStrCmp(upper2, "FOOBAR", SStrLen(upper2));
-        SMemFree(upper2);
+        char string[] = "FOOBAR";
+        SStrUpper(string);
 
-        REQUIRE(!compare);
+        REQUIRE(!SStrCmp(string, "FOOBAR"));
+    }
+
+    SECTION("does nothing on empty string") {
+        char string[] = "";
+        SStrUpper(string);
+
+        REQUIRE(!SStrCmp(string, ""));
     }
 }