SOMEHOW IT WORKS

.gitignore

@@ -0,0 +1,8 @@
+.DS_Store
+/.build
+/Packages
+xcuserdata/
+DerivedData/
+.swiftpm/configuration/registries.json
+.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata
+.netrc

Makefile

@@ -0,0 +1,16 @@
+.PHONY: build run clean release test
+
+build:
+	swift build
+
+release:
+	swift build -c release
+
+run:
+	swift run
+
+test:
+	swift test
+
+clean:
+	swift package clean

Package.swift

@@ -0,0 +1,15 @@
+// swift-tools-version: 6.2
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+    name: "rxcc",
+    targets: [
+        // Targets are the basic building blocks of a package, defining a module or a test suite.
+        // Targets can depend on other targets in this package and products from dependencies.
+        .executableTarget(
+            name: "rxcc"
+        ),
+    ]
+)

Sources/rxcc/rxcc.swift

@@ -0,0 +1,153 @@
+enum Constant {
+    case Integer(value: Int)
+}
+
+struct Return {
+    let value: Constant
+}
+
+struct Function {
+    let name: String
+    let statement: Return
+}
+
+struct Program {
+    let contents: Function
+}
+
+enum TokenType {
+    case BRACE_OPEN
+    case BRACE_CLOSE
+    case PARENTHESIS_OPEN
+    case PARENTHESIS_CLOSE
+    case SEMICOLON
+    case INT
+    case RETURN
+    case IDENTIFIER
+    case LITERAL_INTEGER
+
+    case UNDEFINED
+}
+
+struct Token {
+    let content: Substring
+    let type: TokenType
+}
+
+typealias Construct = [Element]
+
+enum Element {
+    case Construct(type: Construct)
+    case Token(type: TokenType)
+}
+
+
+
+let expression: Construct = [
+    .Token(type: .LITERAL_INTEGER)
+]
+let statement: Construct = [
+    .Token(type: .RETURN),
+    .Construct(type: expression),
+    .Token(type: .SEMICOLON)
+]
+let function: Construct = [
+    .Token(type: .INT),
+    .Token(type: .IDENTIFIER),
+    .Token(type: .PARENTHESIS_OPEN),
+    .Token(type: .PARENTHESIS_CLOSE),
+    .Token(type: .BRACE_OPEN),
+    .Construct(type: statement),
+    .Token(type: .BRACE_CLOSE)
+]
+let program: Construct = [
+    .Construct(type: function)
+]
+
+
+
+@main
+struct rxcc {
+    static func main() {
+        let lexed: [Substring] = lex(string: """
+        int main() {
+            return 100;
+        }
+        """)
+        parse(lexed: lexed)
+    }
+}
+
+func lex(string: String) -> [Substring] {
+    var line = string.replacing("\n", with: " ")
+    line = line.replacing("\t", with: " ")
+    line = line.replacing("{", with: " { ")
+    line = line.replacing("}", with: " } ")
+    line = line.replacing("(", with: " ( ")
+    line = line.replacing(")", with: " ) ")
+    line = line.replacing(";", with: " ; ")
+
+    do {
+        let tokens: [Substring] = line.split(separator: try Regex(" +"))
+        return tokens
+    } catch {
+        print("Regex did something wrong")
+    }
+    return []
+}
+
+func parse(lexed: [Substring]) {
+    var tokens: [Token] = [Token]()
+    for token: Substring in lexed {
+        let tokenType: TokenType = categorizeToken(token: token)
+        tokens.append(Token(content: token, type: tokenType))
+    }
+    tokens = tokens.reversed()
+
+    if validateConstruct(program, tokens: &tokens) {
+        print("Success")
+        return
+    }
+
+    print("Distinct lack of success")
+}
+
+func validateConstruct(_ construct: Construct, tokens: inout [Token]) -> Bool {
+    for element in construct {
+        switch element {
+        case .Construct(let type):
+            print("Begin validate subconstruct")
+            if !validateConstruct(type, tokens: &tokens) {
+                print("Subconstruct validation failed")
+                return false
+            }
+            print("End validate subconstruct")
+            break
+
+        case .Token(let type):
+            if let token: Token = tokens.popLast() {
+                if type != token.type {
+                    print("VALIDATION FAILED FOR TOKEN \"\(token.content)\"")
+                    return false
+                }
+            }
+        }
+    }
+
+    return true
+}
+
+func categorizeToken(token: Substring) -> TokenType {
+    if token.firstMatch(of: /{/) != nil { return .BRACE_OPEN }
+    else if token.firstMatch(of: /}/) != nil { return .BRACE_CLOSE }
+    else if token.firstMatch(of: /\(/) != nil { return .PARENTHESIS_OPEN }
+    else if token.firstMatch(of: /\)/) != nil { return .PARENTHESIS_CLOSE }
+    else if token.firstMatch(of: /;/) != nil { return .SEMICOLON }
+    else if token.firstMatch(of: /int/) != nil { return .INT }
+    else if token.firstMatch(of: /return/) != nil { return .RETURN }
+    else if token.firstMatch(of: /[a-zA-Z]\w*/) != nil { return .IDENTIFIER }
+    else if token.firstMatch(of: /[0-9]+/) != nil { return .LITERAL_INTEGER }
+
+    return .UNDEFINED
+}
+

c/return_2.c

@@ -0,0 +1,4 @@
+int main() {
+    return 2;
+}
+

c/return_2.s

@@ -0,0 +1,35 @@
+	.file	"return_2.c"
+	.text
+	.globl	main
+	.type	main, @function
+main:
+.LFB0:
+	.cfi_startproc
+	pushl	%ebp
+	.cfi_def_cfa_offset 8
+	.cfi_offset 5, -8
+	movl	%esp, %ebp
+	.cfi_def_cfa_register 5
+	call	__x86.get_pc_thunk.ax
+	addl	$_GLOBAL_OFFSET_TABLE_, %eax
+	movl	$2, %eax
+	popl	%ebp
+	.cfi_restore 5
+	.cfi_def_cfa 4, 4
+	ret
+	.cfi_endproc
+.LFE0:
+	.size	main, .-main
+	.section	.text.__x86.get_pc_thunk.ax,"axG",@progbits,__x86.get_pc_thunk.ax,comdat
+	.globl	__x86.get_pc_thunk.ax
+	.hidden	__x86.get_pc_thunk.ax
+	.type	__x86.get_pc_thunk.ax, @function
+__x86.get_pc_thunk.ax:
+.LFB1:
+	.cfi_startproc
+	movl	(%esp), %eax
+	ret
+	.cfi_endproc
+.LFE1:
+	.ident	"GCC: (GNU) 15.2.1 20260103"
+	.section	.note.GNU-stack,"",@progbits

c/test_compiler.sh

@@ -0,0 +1,158 @@
+#!/bin/bash
+
+padding_dots=$(printf '%0.1s' "."{1..60})
+padlength=50
+cmp=$1
+success_total=0
+failure_total=0
+
+print_test_name () {
+    test_name=$1
+    printf '%s' "$test_name"
+    printf '%*.*s' 0 $((padlength - ${#test_name})) "$padding_dots"
+}
+
+test_success () {
+    echo "OK"
+    ((success++))
+}
+
+test_failure () {
+    echo "FAIL"
+    ((fail++))
+}
+
+test_not_implemented () {
+    echo "NOT IMPLEMENTED"
+}
+
+run_our_program () {
+    actual_out=`./$1 2>/dev/null`
+    actual_exit_code=$?
+    rm $1 2>/dev/null
+}
+
+run_correct_program () {
+    expected_out=`./a.out`
+    expected_exit_code=$?
+    rm a.out
+}
+
+compare_program_results () {
+    # make sure exit code is correct
+    if [ "$expected_exit_code" -ne "$actual_exit_code" ] || [ "$expected_out" != "$actual_out" ]
+    then
+        test_failure
+    else
+        test_success
+    fi
+}
+
+test_stage () {
+    success=0
+    fail=0
+    echo "===================================================="
+    echo "STAGE $1"
+    echo "===================Valid Programs==================="
+    for prog in `find . -type f -name "*.c" -path "./stage_$1/valid/*" -not -path "*/valid_multifile/*" 2>/dev/null`; do
+
+        gcc -w $prog
+        run_correct_program
+
+        base="${prog%.*}" #name of executable (filename w/out extension)
+        test_name="${base##*valid/}"
+
+        print_test_name $test_name
+        $cmp $prog 2>/dev/null
+        status=$?
+
+        if [[ $test_name == "skip_on_failure"* ]]; then
+            # this may depend on features we haven't implemented yet
+            # if compilation succeeds, make sure it gives the right result
+            # otherwise don't count it as success or failure
+            if [[ -f $base ]] && [[ $status -eq 0 ]]; then
+                # it succeeded, so run it and make sure it gives the right result
+                run_our_program $base
+                compare_program_results
+            else
+                test_not_implemented
+            fi
+        else
+            run_our_program $base
+            compare_program_results
+        fi
+    done
+    # programs with multiple source files
+    for dir in `ls -d stage_$1/valid_multifile/* 2>/dev/null` ; do
+        gcc -w $dir/*
+
+        run_correct_program
+
+        base="${dir%.*}" #name of executable (directory w/out extension)
+        test_name="${base##*valid_multifile/}"
+
+        # need to explicitly specify output name
+        $cmp -o "$test_name" $dir/* >/dev/null
+
+        print_test_name $test_name
+
+        # check output/exit codes
+        run_our_program $test_name
+        compare_program_results
+
+    done
+    echo "===================Invalid Programs================="
+    for prog in `ls stage_$1/invalid/{,**/}*.c 2>/dev/null`; do
+
+        base="${prog%.*}" #name of executable (filename w/out extension)
+        test_name="${base##*invalid/}"
+
+        $cmp $prog >/dev/null 2>&1
+        status=$? #failed, as we expect, if exit code != 0
+        print_test_name $test_name
+
+        # make sure neither executable nor assembly was produced
+        # and exit code is non-zero
+        if [[ -f $base || -f $base".s" ]]
+        then
+            test_failure
+            rm $base 2>/dev/null
+            rm $base".s" 2>/dev/null
+        else
+            test_success
+        fi
+    done
+    echo "===================Stage $1 Summary================="
+    printf "%d successes, %d failures\n" $success $fail
+    ((success_total=success_total+success))
+    ((failure_total=failure_total + fail))
+}
+
+total_summary () {
+    echo "===================TOTAL SUMMARY===================="
+    printf "%d successes, %d failures\n" $success_total $failure_total
+}
+
+if [ "$1" == "" ]; then
+    echo "USAGE: ./test_compiler.sh /path/to/compiler [stages(optional)]"
+    echo "EXAMPLE(test specific stages): ./test_compiler.sh ./mycompiler 1 2 4"
+    echo "EXAMPLE(test all): ./test_compiler.sh ./mycompiler"
+    exit 1
+fi
+
+if test 1 -lt $#; then
+   testcases=("$@") # [1..-1] is testcases
+   for i in `seq 2 $#`; do
+       test_stage ${testcases[$i-1]}
+   done
+   total_summary
+   exit 0
+fi
+
+num_stages=10
+
+for i in `seq 1 $num_stages`; do
+    test_stage $i
+done
+
+total_summary

c/tests/stage_1/invalid/missing_paren.c

@@ -0,0 +1,3 @@
+int main( {
+    return 0;
+}

c/tests/stage_1/invalid/missing_retval.c

@@ -0,0 +1,3 @@
+int main() {
+    return;
+}

c/tests/stage_1/invalid/no_brace.c

@@ -0,0 +1,2 @@
+int main() {
+    return 0;

c/tests/stage_1/invalid/no_semicolon.c

@@ -0,0 +1,3 @@
+int main() {
+    return 0
+}

c/tests/stage_1/invalid/no_space.c

@@ -0,0 +1,3 @@
+int main() {
+    return0;
+}

c/tests/stage_1/invalid/wrong_case.c

@@ -0,0 +1,3 @@
+int main() {
+    RETURN 0;
+}

c/tests/stage_1/valid/multi_digit.c

@@ -0,0 +1,3 @@
+int main() {
+    return 100;
+}

c/tests/stage_1/valid/newlines.c

@@ -0,0 +1,10 @@
+
+int 
+main
+(   
+)
+{
+return
+0
+;
+}

c/tests/stage_1/valid/no_newlines.c

@@ -0,0 +1 @@
+int main(){return 0;}

c/tests/stage_1/valid/return_0.c

@@ -0,0 +1,3 @@
+int main() {
+    return 0;
+}

c/tests/stage_1/valid/return_2.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2;
+}

c/tests/stage_1/valid/spaces.c

@@ -0,0 +1 @@
+   int   main    (  )  {   return  0 ; }

c/tests/stage_10/invalid/fun_redefined_as_var.c

@@ -0,0 +1,9 @@
+int foo() {
+    return 3;
+}
+
+int foo = 4;
+
+int main() {
+    return foo;
+}

c/tests/stage_10/invalid/multiple_global_defs.c

@@ -0,0 +1,7 @@
+int foo = 3;
+
+int main() {
+    return foo;
+}
+
+int foo = 0;

c/tests/stage_10/invalid/non_constant_init.c

@@ -0,0 +1,6 @@
+int foo = 3;
+int bar = foo + 1;
+
+int main() {
+    return bar;
+}

c/tests/stage_10/invalid/use_before_declaration.c

@@ -0,0 +1,5 @@
+int main() {
+    return foo;
+}
+
+int foo = 3;

c/tests/stage_10/invalid/var_redefined_as_fun.c

@@ -0,0 +1,9 @@
+int foo = 4;
+
+int foo() {
+    return 3;
+}
+
+int main() {
+    return foo;
+}

c/tests/stage_10/invalid/variable_used_as_fun.c

@@ -0,0 +1,5 @@
+int foo = 3;
+
+int main() {
+    return foo();
+}

c/tests/stage_10/valid/forward_declaration.c

@@ -0,0 +1,7 @@
+int foo;
+
+int main() {
+    return foo;
+}
+
+int foo = 3;

c/tests/stage_10/valid/fun_shadowed_by_variable.c

@@ -0,0 +1,8 @@
+int foo() {
+    return 3;
+}
+
+int main() {
+    int foo = 5;
+    return foo;
+}

c/tests/stage_10/valid/global.c

@@ -0,0 +1,5 @@
+int foo = 4;
+
+int main() {
+    return foo + 3;
+}

c/tests/stage_10/valid/global_not_initialized.c

@@ -0,0 +1,7 @@
+int foo;
+
+int main() {
+    for (int i = 0; i < 3; i = i + 1)
+        foo = foo + 1;
+    return foo;
+}

c/tests/stage_10/valid/global_shadowed.c

@@ -0,0 +1,10 @@
+int a = 3;
+
+int main() {
+    int ret = 0;
+    if (a) {
+        int a = 0;
+        ret = 4;
+    }
+    return ret;
+}

c/tests/stage_10/valid/multiple_global.c

@@ -0,0 +1,6 @@
+int a = 3;
+int b = 4;
+
+int main() {
+    return a * b;
+}

c/tests/stage_2/invalid/missing_const.c

@@ -0,0 +1,3 @@
+int main() {
+    return !;
+}

c/tests/stage_2/invalid/missing_semicolon.c

@@ -0,0 +1,3 @@
+int main() {
+    return !5
+}

c/tests/stage_2/invalid/nested_missing_const.c

@@ -0,0 +1,3 @@
+int main() {
+    return !~;
+}

c/tests/stage_2/invalid/wrong_order.c

@@ -0,0 +1,3 @@
+int main() {
+    return 4-;
+}

c/tests/stage_2/valid/bitwise.c

@@ -0,0 +1,3 @@
+int main() {
+    return ~12;
+}

c/tests/stage_2/valid/bitwise_zero.c

@@ -0,0 +1,3 @@
+int main() {
+    return ~0;
+}

c/tests/stage_2/valid/neg.c

@@ -0,0 +1,3 @@
+int main() {
+    return -5;
+}

c/tests/stage_2/valid/nested_ops.c

@@ -0,0 +1,3 @@
+int main() {
+    return !-3;
+}

c/tests/stage_2/valid/nested_ops_2.c

@@ -0,0 +1,3 @@
+int main() {
+    return -~0;
+}

c/tests/stage_2/valid/not_five.c

@@ -0,0 +1,3 @@
+int main() {
+    return !5;
+}

c/tests/stage_2/valid/not_zero.c

@@ -0,0 +1,3 @@
+int main() {
+    return !0;
+}

c/tests/stage_3/invalid/malformed_paren.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2 (- 3);
+}

c/tests/stage_3/invalid/missing_first_op.c

@@ -0,0 +1,3 @@
+int main() {
+    return /3;
+}

c/tests/stage_3/invalid/missing_second_op.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 + ;
+}

c/tests/stage_3/invalid/no_semicolon.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2*2
+}

c/tests/stage_3/valid/add.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 + 2;
+}

c/tests/stage_3/valid/associativity.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 - 2 - 3;
+}

c/tests/stage_3/valid/associativity_2.c

@@ -0,0 +1,3 @@
+int main() {
+    return 6 / 3 / 2;
+}

c/tests/stage_3/valid/div.c

@@ -0,0 +1,3 @@
+int main() {
+    return 4 / 2;
+}

c/tests/stage_3/valid/div_neg.c

@@ -0,0 +1,3 @@
+int main() {
+    return (-12) / 5;
+}

c/tests/stage_3/valid/mult.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2 * 3;
+}

c/tests/stage_3/valid/parens.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2 * (3 + 4);
+}

c/tests/stage_3/valid/precedence.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2 + 3 * 4;
+}

c/tests/stage_3/valid/sub.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 - 2;
+}

c/tests/stage_3/valid/sub_neg.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2- -1;
+}

c/tests/stage_3/valid/unop_add.c

@@ -0,0 +1,3 @@
+int main() {
+    return ~2 + 3;
+}

c/tests/stage_3/valid/unop_parens.c

@@ -0,0 +1,3 @@
+int main() {
+    return ~(1 + 1);
+}

c/tests/stage_4/invalid/missing_first_op.c

@@ -0,0 +1,3 @@
+int main() {
+    return <= 2;
+}

c/tests/stage_4/invalid/missing_mid_op.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 < > 3;
+}

c/tests/stage_4/invalid/missing_second_op.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2 &&
+}

c/tests/stage_4/invalid/missing_semicolon.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 || 2
+}

c/tests/stage_4/valid/and_false.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 && 0;
+}

c/tests/stage_4/valid/and_true.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 && -1;
+}

c/tests/stage_4/valid/eq_false.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 == 2;
+}

c/tests/stage_4/valid/eq_true.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 == 1;
+}

c/tests/stage_4/valid/ge_false.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 >= 2;
+}

c/tests/stage_4/valid/ge_true.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 >= 1;
+}

c/tests/stage_4/valid/gt_false.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 > 2;
+}

c/tests/stage_4/valid/gt_true.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 > 0;
+}

c/tests/stage_4/valid/le_false.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 <= -1;
+}

c/tests/stage_4/valid/le_true.c

@@ -0,0 +1,3 @@
+int main() {
+    return 0 <= 2;
+}

c/tests/stage_4/valid/lt_false.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2 < 1;
+}

c/tests/stage_4/valid/lt_true.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 < 2;
+}

c/tests/stage_4/valid/ne_false.c

@@ -0,0 +1,3 @@
+int main() {
+    return 0 != 0;
+}

c/tests/stage_4/valid/ne_true.c

@@ -0,0 +1,3 @@
+int main() {
+    return -1 != -2;
+}

c/tests/stage_4/valid/or_false.c

@@ -0,0 +1,3 @@
+int main() {
+    return 0 || 0;
+}

c/tests/stage_4/valid/or_true.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 || 0;
+}

c/tests/stage_4/valid/precedence.c

@@ -0,0 +1,3 @@
+int main() {
+    return 1 || 0 && 2;
+}

c/tests/stage_4/valid/precedence_2.c

@@ -0,0 +1,3 @@
+int main() {
+    return (1 || 0) && 0;
+}

c/tests/stage_4/valid/precedence_3.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2 == 2 > 0;
+}

c/tests/stage_4/valid/precedence_4.c

@@ -0,0 +1,3 @@
+int main() {
+    return 2 == 2 || 0;
+}

c/tests/stage_4/valid/skip_on_failure_multi_short_circuit.c

@@ -0,0 +1,5 @@
+int main() {
+    int a = 0;
+    a || (a = 3) || (a = 4);
+    return a;
+}

c/tests/stage_4/valid/skip_on_failure_short_circuit_and.c

@@ -0,0 +1,6 @@
+int main() {
+    int a = 0;
+    int b = 0;
+    a && (b = 5);
+    return b;
+}

c/tests/stage_4/valid/skip_on_failure_short_circuit_or.c

@@ -0,0 +1,6 @@
+int main() {
+    int a = 1;
+    int b = 0;
+    a || (b = 5);
+    return b;
+}

c/tests/stage_5/invalid/redefine.c

@@ -0,0 +1,5 @@
+int main() {
+    int a = 1;
+    int a = 2;
+    return a;
+}

c/tests/stage_5/invalid/syntax_err_bad_decl.c

@@ -0,0 +1,4 @@
+int main() {
+    ints a = 1;
+    return a;
+}

c/tests/stage_5/invalid/syntax_err_bad_decl_2.c

@@ -0,0 +1,4 @@
+int main() {
+    int foo bar = 3;
+    return bar;
+}

c/tests/stage_5/invalid/syntax_err_bad_lvalue.c

@@ -0,0 +1,5 @@
+int main() {
+    int a = 2;
+    a + 3 = 4;
+    return a;
+}

c/tests/stage_5/invalid/syntax_err_bad_lvalue_2.c

@@ -0,0 +1,5 @@
+int main() {
+    int a = 2;
+    !a = 3;
+    return a;
+}

c/tests/stage_5/invalid/syntax_err_no_semicolon.c

@@ -0,0 +1,5 @@
+int main() {
+    int a = 2
+    a = a + 4;
+    return a;
+}

c/tests/stage_5/invalid/undeclared_var.c

@@ -0,0 +1,3 @@
+int main() {
+    return a;
+}

c/tests/stage_5/invalid/var_declared_late.c

@@ -0,0 +1,5 @@
+int main() {
+    a = 1 + 2;
+    int a;
+    return a;
+}

c/tests/stage_5/valid/assign.c

@@ -0,0 +1,5 @@
+int main() {
+    int a;
+    a = 2;
+    return a;
+}

c/tests/stage_5/valid/assign_val.c

@@ -0,0 +1,5 @@
+int main() {
+    int a;
+    int b = a = 0;
+    return b;
+}

c/tests/stage_5/valid/exp_return_val.c

@@ -0,0 +1,6 @@
+int main() {
+    int a;
+    int b;
+    a = b = 4;
+    return a - b;
+}

c/tests/stage_5/valid/initialize.c

@@ -0,0 +1,4 @@
+int main() {
+    int a = 2;
+    return 0;
+}

c/tests/stage_5/valid/missing_return.c

@@ -0,0 +1,3 @@
+int main() {
+
+}