4 files changed, 72 insertions, 8 deletions
diff --git a/comp/lucas-standen-NEA/code/global/Makefile b/comp/lucas-standen-NEA/code/global/Makefile
index dbff2b0..4f9828e 100644
--- a/comp/lucas-standen-NEA/code/global/Makefile
+++ b/comp/lucas-standen-NEA/code/global/Makefile
@@ -1,4 +1,4 @@
 all: util
 	$(info done!)
 util: util.c 
-	cc util.c -c -o util.o
+	cc util.c -c -o util.o -ggdb
diff --git a/comp/lucas-standen-NEA/code/global/types.h b/comp/lucas-standen-NEA/code/global/types.h
index e73d55d..0d27996 100644
--- a/comp/lucas-standen-NEA/code/global/types.h
+++ b/comp/lucas-standen-NEA/code/global/types.h
@@ -1,15 +1,39 @@
 #include <stdint.h>
-#include "../ads/ll/ll.h"
 
 // int types
-typedef int32_t i32;
-typedef int64_t i64;
+typedef struct I32 {
+	int32_t data;
+} I32;
+
+typedef struct I64 {
+	int64_t data;
+} I64;
 
 // uint types
-typedef uint32_t u32;
-typedef uint64_t u64;
+typedef struct U32 {
+	uint32_t data;
+} U32;
+
+typedef struct U64 {
+	uint64_t data;
+} U64;
+
+typedef struct Char {
+	char data;
+} Char;
+
+typedef struct Float {
+	float data;
+} Float;
 
-// char and float types are still called char and float so no typedef needed
+typedef union litteral {
+	I32 *i32;
+	I64 *i64;
+	U32 *u32;
+	I64 *u64;
+	Char *ch;
+	Float *fl;
+} litteral;
 
 // built in functions
 typedef enum builtInFuncs {
@@ -58,7 +82,7 @@ typedef struct ast_node ast_node;
 
 typedef struct ast_node {
 	functionToken *func; // if it's not builtin then use this
-	char **literalArgs; // the args of the node, this will be an array of litteral values
+	litteral **literalArgs; // the args of the node, this will be an array of litteral values
 	ast_node **args; // the non litteral tokens
 	// if litteralArgs[x] is real then args[x] should be NULL, and vice versa
 } ast_node;
diff --git a/comp/lucas-standen-NEA/code/global/util.c b/comp/lucas-standen-NEA/code/global/util.c
index 736619b..3b1f97c 100644
--- a/comp/lucas-standen-NEA/code/global/util.c
+++ b/comp/lucas-standen-NEA/code/global/util.c
@@ -4,6 +4,10 @@
 #include <stdbool.h>
 #include <errno.h>
 #include <error.h>
+#include <ctype.h>
+
+#include "types.h"
+
 
 // functions for user
 void Die(); // brings down the program
@@ -71,3 +75,33 @@ void CheckedFreeALL(){
 		}
 	}
 }
+
+I64 *isNum(char *str){
+	for (int i = 0; i < strlen(str); i++){
+		if (isdigit(str[i]) == 0 && str[i] != '-'){
+			return NULL;	
+		}
+	}
+	I64 *out = CheckedMalloc(sizeof(I64));
+	out->data = strtol(str, NULL, 10);
+	return out;
+}
+
+Float *isFloat(char *str){
+	for (int i = 0; i < strlen(str); i++){
+		if (isdigit(str[i]) == 0 && str[i] != '-' && str[i] != '.'){
+			return NULL;	
+		}
+	}
+	Float *out = CheckedMalloc(sizeof(Float));
+	out->data = strtod(str, NULL);
+	return out;
+}
+Char *isChar(char *str){
+	if (strlen(str) == 1){
+		Char *out = malloc(sizeof(Char));
+		out->data = str[0];
+		return out;
+	}
+	else return NULL;
+}
diff --git a/comp/lucas-standen-NEA/code/global/util.h b/comp/lucas-standen-NEA/code/global/util.h
index 8feed88..b10a1f4 100644
--- a/comp/lucas-standen-NEA/code/global/util.h
+++ b/comp/lucas-standen-NEA/code/global/util.h
@@ -5,9 +5,15 @@
 #include <errno.h>
 #include <error.h>
 
+
 // functions for user
 void Die(); // brings down the program
 void *CheckedMalloc(long size); // malloc checked with autofree
 void *CheckedRealloc(void *out, long size); // realloc checked with autofree
 int CheckedFree(void *ptr); // frees a pointer if it is in the array MEMptrs
 void CheckedFreeALL(); // frees all pointers in the array MEMptrs
+
+//checking functions, return NULL if the data is not of their type, else return the value.
+I64 *isNum(char *str); 
+Float *isFloat(char *str);
+Char *isChar(char *str);