diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..3cc4b0b
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+**/.venv
+**/*.interp
+**/*.tokens
+**/__pycache__
diff --git a/MiniC/MiniC.g4 b/MiniC/MiniC.g4
index 0fb24e9..dad84c1 100644
--- a/MiniC/MiniC.g4
+++ b/MiniC/MiniC.g4
@@ -24,6 +24,7 @@ stat: assignment SCOL
     | if_stat
     | while_stat
     | print_stat  
+    | for_fortran_stat
     ;
 
 assignment: ID ASSIGN expr #assignStat;
@@ -31,6 +32,9 @@ assignment: ID ASSIGN expr #assignStat;
 if_stat: IF OPAR expr CPAR then_block=stat_block
         (ELSE else_block=stat_block)? #ifStat;
 
+for_fortran_stat: FOR ID ASSIGN expr TO expr
+                  (BY expr)? stat_block #forStat;
+
 stat_block: OBRACE block CBRACE
           | stat
           ;
@@ -96,6 +100,9 @@ CBRACE : '}';
 TRUE : 'true';
 FALSE : 'false';
 IF : 'if';
+FOR : 'for';
+TO : 'to';
+BY : 'by';
 ELSE : 'else';
 WHILE : 'while';
 RETURN : 'return';
diff --git a/MiniC/README-interpreter.md b/MiniC/README-interpreter.md
index 3d6f6c5..06fdd45 100644
--- a/MiniC/README-interpreter.md
+++ b/MiniC/README-interpreter.md
@@ -29,4 +29,6 @@ TODO: explain your choices - explain the limitations of your implementation.
 
 # Known bugs
 
+- On a division by zero, the interpreter prints "Division by 0" message and returns 1.
+  This differs from certain versions of GCC. The test is therefore skipped.
 TODO: document any known bug and limitations. Did you do everything asked for? Did you implement an extension?
diff --git a/MiniC/TP03/MiniCInterpretVisitor.py b/MiniC/TP03/MiniCInterpretVisitor.py
index f1571d8..f3b5022 100644
--- a/MiniC/TP03/MiniCInterpretVisitor.py
+++ b/MiniC/TP03/MiniCInterpretVisitor.py
@@ -22,10 +22,20 @@ class MiniCInterpretVisitor(MiniCVisitor):
     def visitVarDecl(self, ctx) -> None:
         # Initialise all variables in self._memory
         type_str = ctx.typee().getText()
-        raise NotImplementedError(f"Initialization for type {type_str}")
+        default_value = {
+            "float": 0.0,
+            "int": 0,
+            "bool": False,
+            "string": ""
+        }[type_str]
+
+        names_str = self.visit(ctx.id_l())
+        for name in names_str:
+            self._memory[name] = default_value
 
     def visitIdList(self, ctx) -> List[str]:
-        raise NotImplementedError()
+        ids = self.visit(ctx.id_l())
+        return ids + [ctx.ID().getText()]
 
     def visitIdListBase(self, ctx) -> List[str]:
         return [ctx.ID().getText()]
@@ -45,7 +55,7 @@ class MiniCInterpretVisitor(MiniCVisitor):
         return ctx.getText() == "true"
 
     def visitIdAtom(self, ctx) -> MINIC_VALUE:
-        raise NotImplementedError()
+        return self._memory[ctx.getText()]
 
     def visitStringAtom(self, ctx) -> str:
         return ctx.getText()[1:-1]  # Remove the ""
@@ -115,10 +125,20 @@ class MiniCInterpretVisitor(MiniCVisitor):
             return lval * rval
         elif ctx.myop.type == MiniCParser.DIV:
             # TODO : interpret division
-            raise NotImplementedError()
+            if rval == 0:
+                raise MiniCRuntimeError("Division by 0")
+            if type(lval) == type(1) and type(rval) == type(1):
+                # Integer division
+                if lval * rval < 0:
+                    return -int(abs(lval)/abs(rval))
+                return  int(abs(lval)/abs(rval))
+            raise MiniCInternalError("Attempting to divide elements of different type")
         elif ctx.myop.type == MiniCParser.MOD:
-            # TODO : interpret modulo
-            raise NotImplementedError()
+            if rval == 0:
+                raise MiniCRuntimeError("Division by 0")
+            if lval < 0:
+                return -(abs(lval) % abs(rval))
+            return lval % abs(rval)
         else:
             raise MiniCInternalError(
                 f"Unknown multiplicative operator '{ctx.myop}'")
@@ -150,13 +170,42 @@ class MiniCInterpretVisitor(MiniCVisitor):
         print(val)
 
     def visitAssignStat(self, ctx) -> None:
-        raise NotImplementedError()
+        v = self.visit(ctx.expr())
+        self._memory[ctx.ID().getText()] = v
 
     def visitIfStat(self, ctx) -> None:
-        raise NotImplementedError()
+        b = self.visit(ctx.expr())
+        blocks = ctx.stat_block()
+        if b != 0:
+            self.visit(blocks[0])
+        elif len(blocks) > 1:
+            self.visit(blocks[1])
 
     def visitWhileStat(self, ctx) -> None:
-        raise NotImplementedError()
+        while self.visit(ctx.expr()) != 0:
+            self.visit(ctx.stat_block())
+
+    def visitForStat(self, ctx) -> None:
+        from_val = self.visit(ctx.expr(0))
+        to_val = self.visit(ctx.expr(1))
+        stride = 1
+        if len(ctx.expr()) > 2:
+            stride = self.visit(ctx.expr(2))
+
+        def cond_fun(stride):
+            if stride > 0:
+                return lambda x,y: x < y
+            return lambda x,y: x > y
+
+        condition = cond_fun(stride)
+
+        counter = ctx.ID().getText()
+        self._memory[counter] = from_val
+        while condition(self._memory[counter], to_val):
+            old_counter = self._memory[counter]
+            self.visit(ctx.stat_block())
+            self._memory[counter] = old_counter + stride   # type: ignore
+
 
     # TOPLEVEL
     def visitProgRule(self, ctx) -> None:
diff --git a/MiniC/TP03/MiniCTypingVisitor.py b/MiniC/TP03/MiniCTypingVisitor.py
index f9c5fcd..f68deae 100644
--- a/MiniC/TP03/MiniCTypingVisitor.py
+++ b/MiniC/TP03/MiniCTypingVisitor.py
@@ -43,7 +43,13 @@ class MiniCTypingVisitor(MiniCVisitor):
     # type declaration
 
     def visitVarDecl(self, ctx) -> None:
-        raise NotImplementedError()
+        names_str = self.visit(ctx.id_l())
+        type_minic = self.visit(ctx.typee())
+
+        for name in names_str:
+            if name in self._memorytypes:
+                self._raiseNonType(ctx, f"Variable {name} already declared")
+            self._memorytypes[name] = type_minic
 
     def visitBasicType(self, ctx):
         assert ctx.mytype is not None
@@ -51,14 +57,18 @@ class MiniCTypingVisitor(MiniCVisitor):
             return BaseType.Integer
         elif ctx.mytype.type == MiniCParser.FLOATTYPE:
             return BaseType.Float
-        else:  # TODO: same for other types
-            raise NotImplementedError()
+        elif ctx.mytype.type == MiniCParser.STRINGTYPE:
+            return BaseType.String
+        elif ctx.mytype.type == MiniCParser.BOOLTYPE:
+            return BaseType.Boolean
+
 
     def visitIdList(self, ctx) -> List[str]:
-        raise NotImplementedError()
+        ids = self.visit(ctx.id_l())
+        return ids + [ctx.ID().getText()]
 
     def visitIdListBase(self, ctx) -> List[str]:
-        raise NotImplementedError()
+        return [ctx.ID().getText()]
 
     # typing visitors for expressions, statements !
 
@@ -73,14 +83,13 @@ class MiniCTypingVisitor(MiniCVisitor):
         return BaseType.Float
 
     def visitBooleanAtom(self, ctx):
-        raise NotImplementedError()
+        return BaseType.Boolean
 
     def visitIdAtom(self, ctx):
         try:
             return self._memorytypes[ctx.getText()]
         except KeyError:
-            self._raiseNonType(ctx,
-                               "Undefined variable {}".format(ctx.getText()))
+            self._raiseNonType(ctx, "Undefined variable {}".format(ctx.getText()))
 
     def visitStringAtom(self, ctx):
         return BaseType.String
@@ -91,30 +100,67 @@ class MiniCTypingVisitor(MiniCVisitor):
         return self.visit(ctx.atom())
 
     def visitOrExpr(self, ctx):
-        raise NotImplementedError()
+        ltype = self.visit(ctx.expr(0))
+        rtype = self.visit(ctx.expr(1))
+        self._assertSameType(ctx, "|", ltype, rtype)
+        if ltype == BaseType.String:
+            self._raise(ctx, "string not allowed", ltype)
+        return ltype
 
     def visitAndExpr(self, ctx):
-        raise NotImplementedError()
+        ltype = self.visit(ctx.expr(0))
+        rtype = self.visit(ctx.expr(1))
+        self._assertSameType(ctx, "&", ltype, rtype)
+        if ltype == BaseType.String:
+            self._raise(ctx, "string not allowed", ltype)
+        return ltype
 
     def visitEqualityExpr(self, ctx):
-        raise NotImplementedError()
+        ltype = self.visit(ctx.expr(0))
+        rtype = self.visit(ctx.expr(1))
+        self._assertSameType(ctx, "==", ltype, rtype)
+        return BaseType.Boolean
 
     def visitRelationalExpr(self, ctx):
-        raise NotImplementedError()
+        ltype = self.visit(ctx.expr(0))
+        rtype = self.visit(ctx.expr(1))
+        self._assertSameType(ctx, "relational expr need same type", ltype, rtype)
+        if ltype not in [BaseType.Integer, BaseType.Float]:
+            self._raise(ctx, "non numeric type", ltype)
+        return BaseType.Boolean
 
     def visitAdditiveExpr(self, ctx):
         assert ctx.myop is not None
-        raise NotImplementedError()
+        ltype = self.visit(ctx.expr(0))
+        rtype = self.visit(ctx.expr(1))
+        self._assertSameType(ctx, "Additive", ltype, rtype)
+        if ltype not in [BaseType.String, BaseType.Integer, BaseType.Float]:
+            self._raise(ctx, "additive operands", ltype, rtype)
+        if ltype == BaseType.String and ctx.myop.type != MiniCParser.PLUS:
+            self._raise(ctx, "Minus not compatible with string", ltype)
+        return ltype
 
     def visitMultiplicativeExpr(self, ctx):
         assert ctx.myop is not None
-        raise NotImplementedError()
+        ltype = self.visit(ctx.expr(0))
+        rtype = self.visit(ctx.expr(1))
+        if ltype == BaseType.String or rtype == BaseType.String:
+            self._raise(ctx, "multiplicative operands", ltype, rtype)
+        self._assertSameType(ctx, "multiplicative operands", ltype, rtype)
+        return ltype
 
     def visitNotExpr(self, ctx):
-        raise NotImplementedError()
+        ltype = self.visit(ctx.expr())
+        if ltype != BaseType.Boolean:
+            self._raise(ctx, "NOT: only boolean allowed", ltype)
+        return BaseType.Boolean
 
     def visitUnaryMinusExpr(self, ctx):
-        raise NotImplementedError()
+        ltype = self.visit(ctx.expr())
+        if ltype not in [BaseType.Integer, BaseType.Float]:
+            self._raise(ctx, "non integer type", ltype)
+        return ltype
+
 
     # visit statements
 
@@ -139,10 +185,42 @@ class MiniCTypingVisitor(MiniCVisitor):
             self._raise(ctx, 'println_string statement', etype)
 
     def visitAssignStat(self, ctx):
-        raise NotImplementedError()
+        etype = self.visit(ctx.expr())
+        if ctx.ID().getText() not in self._memorytypes:
+            self._raiseNonType(ctx, f"Undefined variable {ctx.ID().getText()}")
+        self._assertSameType(ctx, ctx.ID().getText(), self._memorytypes[ctx.ID().getText()], etype)
 
     def visitWhileStat(self, ctx):
-        raise NotImplementedError()
+        etype = self.visit(ctx.expr())
+        if etype != BaseType.Boolean:
+            self._raise(ctx, "non boolean as condition", etype)
+        self.visit(ctx.stat_block())
 
     def visitIfStat(self, ctx):
-        raise NotImplementedError()
+        etype = self.visit(ctx.expr())
+        if etype != BaseType.Boolean:
+            self._raise(ctx, "non boolean as condition", etype)
+        for block in ctx.stat_block():
+            self.visit(block)
+
+    def visitForStat(self, ctx) -> None:
+        from_type = self.visit(ctx.expr(0))
+        to_type = self.visit(ctx.expr(1))
+
+        if from_type != BaseType.Integer:
+            self._raise(ctx, "non-integer from value", from_type)
+        if to_type != BaseType.Integer:
+            self._raise(ctx, "non-integer to value", to_type)
+
+
+        if ctx.ID().getText() not in self._memorytypes:
+            self._raiseNonType(ctx, f"Undefined variable {ctx.ID().getText()}")
+        if self._memorytypes[ctx.ID().getText()] != BaseType.Integer:
+            self._raise(ctx, "non-integer for loop counter", self._memorytypes[ctx.ID().getText()])
+
+        if len(ctx.expr()) > 2:
+            stride_type = self.visit(ctx.expr(2))
+            if stride_type != BaseType.Integer:
+                self._raise(ctx, "non-integer stride value", stride_type)
+
+        self.visit(ctx.stat_block())
diff --git a/MiniC/TP03/tests/students/base/test_add_string.c b/MiniC/TP03/tests/students/base/test_add_string.c
new file mode 100644
index 0000000..f694c86
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_add_string.c
@@ -0,0 +1,10 @@
+#include "printlib.h"
+
+int main() {
+  println_string("hello"+" "+"there");
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXPECTED
+// hello there
diff --git a/MiniC/TP03/tests/students/base/test_and_string.c b/MiniC/TP03/tests/students/base/test_and_string.c
new file mode 100644
index 0000000..fa643d7
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_and_string.c
@@ -0,0 +1,11 @@
+#include "printlib.h"
+
+int main() {
+  println_string("hello" && "hi");
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 4 col 17: invalid type for string not allowed: string
\ No newline at end of file
diff --git a/MiniC/TP03/tests/students/base/test_comp_bool.c b/MiniC/TP03/tests/students/base/test_comp_bool.c
new file mode 100644
index 0000000..e7f2214
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_comp_bool.c
@@ -0,0 +1,16 @@
+#include "printlib.h"
+
+int main() {
+  bool x, y;
+
+  if (x <= y) {
+    println_string("ok");
+  }
+
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 6 col 6: invalid type for non numeric type: boolean
\ No newline at end of file
diff --git a/MiniC/TP03/tests/students/base/test_div_0.c b/MiniC/TP03/tests/students/base/test_div_0.c
new file mode 100644
index 0000000..fc1d200
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_div_0.c
@@ -0,0 +1,14 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+  x = 5;
+  y = 0;
+  println_int(x/0);
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXECCODE 1
+// EXPECTED
+// Division by 0
diff --git a/MiniC/TP03/tests/students/base/test_div_0_float.c b/MiniC/TP03/tests/students/base/test_div_0_float.c
new file mode 100644
index 0000000..1fec8fc
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_div_0_float.c
@@ -0,0 +1,14 @@
+#include "printlib.h"
+
+int main() {
+ float x, y;
+  x = 5.0;
+  y = 0.0;
+  x = x/y;
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXECCODE 1
+// EXPECTED
+// Division by 0
diff --git a/MiniC/TP03/tests/students/base/test_division.c b/MiniC/TP03/tests/students/base/test_division.c
new file mode 100644
index 0000000..b07a011
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_division.c
@@ -0,0 +1,16 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+  float xf, yf;
+
+  x = 5;
+  y = 2;
+  println_int((-x)/y);
+  println_int(x/y);
+  return 0;
+}
+
+// EXPECTED
+// -2
+// 2
diff --git a/MiniC/TP03/tests/students/base/test_else.c b/MiniC/TP03/tests/students/base/test_else.c
new file mode 100644
index 0000000..eb23197
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_else.c
@@ -0,0 +1,15 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+  if (x != 0) {
+    y = 12;
+  } else {
+    y = -3;
+  }
+  println_int(y);
+	return 0;
+}
+
+// EXPECTED
+// -3
diff --git a/MiniC/TP03/tests/students/base/test_if_nonbool.c b/MiniC/TP03/tests/students/base/test_if_nonbool.c
new file mode 100644
index 0000000..3f9bde0
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_if_nonbool.c
@@ -0,0 +1,16 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+ 
+  if (x) {
+    y = 5;
+  }
+  println_int(y);
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 6 col 2: invalid type for non boolean as condition: integer
diff --git a/MiniC/TP03/tests/students/base/test_mod.c b/MiniC/TP03/tests/students/base/test_mod.c
new file mode 100644
index 0000000..a4b760f
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_mod.c
@@ -0,0 +1,19 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+  x = 5;
+  y = 3;
+  println_int(x%y);
+  println_int((-x)%y);
+  y = 0;
+  println_int(x%y);
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXECCODE 1
+// EXPECTED
+// 2
+// -2
+// Division by 0
diff --git a/MiniC/TP03/tests/students/base/test_not_int.c b/MiniC/TP03/tests/students/base/test_not_int.c
new file mode 100644
index 0000000..277d6cf
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_not_int.c
@@ -0,0 +1,11 @@
+#include "printlib.h"
+
+int main() {
+  println_int(!(12+2));
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 4 col 14: invalid type for NOT: only boolean allowed: integer
diff --git a/MiniC/TP03/tests/students/base/test_or_string.c b/MiniC/TP03/tests/students/base/test_or_string.c
new file mode 100644
index 0000000..fc7ad7a
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_or_string.c
@@ -0,0 +1,11 @@
+#include "printlib.h"
+
+int main() {
+  println_string("hello" || "hi");
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 4 col 17: invalid type for string not allowed: string
diff --git a/MiniC/TP03/tests/students/base/test_println_bool.c b/MiniC/TP03/tests/students/base/test_println_bool.c
new file mode 100644
index 0000000..1960ef7
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_println_bool.c
@@ -0,0 +1,14 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+
+  println_bool(true);
+  println_bool(y+2);
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 7 col 2: invalid type for println_bool statement: integer
diff --git a/MiniC/TP03/tests/students/base/test_println_float.c b/MiniC/TP03/tests/students/base/test_println_float.c
new file mode 100644
index 0000000..946f84a
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_println_float.c
@@ -0,0 +1,14 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+
+  println_float(15.0);
+  println_float(y+2);
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 7 col 2: invalid type for println_float statement: integer
diff --git a/MiniC/TP03/tests/students/base/test_println_string.c b/MiniC/TP03/tests/students/base/test_println_string.c
new file mode 100644
index 0000000..a4fe9c3
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_println_string.c
@@ -0,0 +1,14 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+
+  println_string("hello !");
+  println_string(y-2);
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 7 col 2: invalid type for println_string statement: integer
diff --git a/MiniC/TP03/tests/students/base/test_substr_string.c b/MiniC/TP03/tests/students/base/test_substr_string.c
new file mode 100644
index 0000000..5016224
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_substr_string.c
@@ -0,0 +1,11 @@
+#include "printlib.h"
+
+int main() {
+  println_string("hello" - "llo");
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 4 col 17: invalid type for Minus not compatible with string: string
diff --git a/MiniC/TP03/tests/students/base/test_unary_string.c b/MiniC/TP03/tests/students/base/test_unary_string.c
new file mode 100644
index 0000000..75b3825
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_unary_string.c
@@ -0,0 +1,11 @@
+#include "printlib.h"
+
+int main() {
+  println_string(-"hello");
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 4 col 17: invalid type for non integer type: string
diff --git a/MiniC/TP03/tests/students/base/test_while.c b/MiniC/TP03/tests/students/base/test_while.c
new file mode 100644
index 0000000..f8e80a2
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_while.c
@@ -0,0 +1,13 @@
+#include "printlib.h"
+
+int main() {
+  int x;
+  while (x < 12) {
+    x = x+2;
+  }
+  println_int(x);
+	return 0;
+}
+
+// EXPECTED
+// 12
diff --git a/MiniC/TP03/tests/students/base/test_while_nonbool.c b/MiniC/TP03/tests/students/base/test_while_nonbool.c
new file mode 100644
index 0000000..b65726a
--- /dev/null
+++ b/MiniC/TP03/tests/students/base/test_while_nonbool.c
@@ -0,0 +1,17 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+ 
+  while (x) {
+    y = 5;
+    x = x+1;
+  }
+  println_int(y);
+	return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 6 col 2: invalid type for non boolean as condition: integer
diff --git a/MiniC/TP03/tests/students/ext-for-c/README.md b/MiniC/TP03/tests/students/ext-for-c/README.md
deleted file mode 100644
index f2a3430..0000000
--- a/MiniC/TP03/tests/students/ext-for-c/README.md
+++ /dev/null
@@ -1 +0,0 @@
-Add your own tests for the C-like 'for' loop in this directory (tests for the interpreter).
diff --git a/MiniC/TP03/tests/students/ext-for-fortran/test_for.c b/MiniC/TP03/tests/students/ext-for-fortran/test_for.c
new file mode 100644
index 0000000..2aa7fa2
--- /dev/null
+++ b/MiniC/TP03/tests/students/ext-for-fortran/test_for.c
@@ -0,0 +1,32 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+  int zero, trois;
+  trois = 3;
+  
+  // simple loop
+  for x=zero to trois {
+    y = y+3;
+  }
+  println_int(y);
+  println_int(x);
+
+  // inversed loop
+  for x=5 to 1 by -2 {
+    println_int(x);
+  }
+
+  // empty loop
+  for x=5 to 0 {
+    println_int(-1);
+  }
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXPECTED
+// 9
+// 3
+// 5
+// 3
diff --git a/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_from.c b/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_from.c
new file mode 100644
index 0000000..7f34bfb
--- /dev/null
+++ b/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_from.c
@@ -0,0 +1,17 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+  float fl;
+  fl = 12.0;
+
+  for x=fl to 3 {
+    y = y+3;
+  }
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 8 col 2: invalid type for non-integer from value: float
diff --git a/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_id.c b/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_id.c
new file mode 100644
index 0000000..dfc5f42
--- /dev/null
+++ b/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_id.c
@@ -0,0 +1,17 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+  float fl;
+  fl = 12.0;
+
+  for fl=0 to 3 {
+    y = y+3;
+  }
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 8 col 2: invalid type for non-integer for loop counter: float
diff --git a/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_stride.c b/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_stride.c
new file mode 100644
index 0000000..880c506
--- /dev/null
+++ b/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_stride.c
@@ -0,0 +1,15 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+
+  for x=0 to 3 by 1.0 {
+    y = y+3;
+  }
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 6 col 2: invalid type for non-integer stride value: float
diff --git a/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_to.c b/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_to.c
new file mode 100644
index 0000000..05c910c
--- /dev/null
+++ b/MiniC/TP03/tests/students/ext-for-fortran/test_invalid_to.c
@@ -0,0 +1,17 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+  float fl;
+  fl = 12.0;
+
+  for x=0 to fl {
+    y = y+3;
+  }
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 8 col 2: invalid type for non-integer to value: float
diff --git a/MiniC/TP03/tests/students/ext-for-fortran/test_undefined_id.c b/MiniC/TP03/tests/students/ext-for-fortran/test_undefined_id.c
new file mode 100644
index 0000000..722193d
--- /dev/null
+++ b/MiniC/TP03/tests/students/ext-for-fortran/test_undefined_id.c
@@ -0,0 +1,15 @@
+#include "printlib.h"
+
+int main() {
+  int x, y;
+
+  for undef=0 to 3 {
+    y = y+3;
+  }
+  return 0;
+}
+
+// SKIP TEST EXPECTED
+// EXITCODE 2
+// EXPECTED
+// In function main: Line 6 col 2: Undefined variable undef