From f658426ba59bd956c6ec61663e87c3e594361640 Mon Sep 17 00:00:00 2001
From: Shevek <shevek@anarres.org>
Date: Mon, 19 Aug 2019 12:23:10 -0700
Subject: LexerSource: Fix handling of numeric values with explicit positive
 exponents.

---
 src/main/java/org/anarres/cpp/LexerSource.java      | 2 +-
 src/test/java/org/anarres/cpp/NumericValueTest.java | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/anarres/cpp/LexerSource.java b/src/main/java/org/anarres/cpp/LexerSource.java
index 33268f8..c613f96 100644
--- a/src/main/java/org/anarres/cpp/LexerSource.java
+++ b/src/main/java/org/anarres/cpp/LexerSource.java
@@ -569,7 +569,7 @@ public class LexerSource extends Source {
             LexerException {
         StringBuilder part = new StringBuilder();
         int d = read();
-        if (sign && d == '-') {
+        if (sign && (d == '+' || d == '-')) {
             text.append((char) d);
             part.append((char) d);
             d = read();
diff --git a/src/test/java/org/anarres/cpp/NumericValueTest.java b/src/test/java/org/anarres/cpp/NumericValueTest.java
index d4ea432..5551942 100644
--- a/src/test/java/org/anarres/cpp/NumericValueTest.java
+++ b/src/test/java/org/anarres/cpp/NumericValueTest.java
@@ -75,6 +75,7 @@ public class NumericValueTest {
         testNumericValue("1e1", 1e1);
         // testNumericValue("-1e1", -1e1);
         testNumericValue("1e-1", 1e-1);
+        testNumericValue("1e+1", 1e+1);
 
         // Hex numbers with decimal exponents
         testNumericValue("0x12e3", 0x12e3);
-- 
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