From: Janis Johnson <janis187@us.ibm.com>
Date: Mon, 14 May 2007 23:45:40 +0000 (+0000)
Subject: expr.c (cpp_classify_number): Warn about dfp constant for -pedantic.
X-Git-Tag: releases/gcc-4.3.0~5094
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5a6bb57eb9ad3397408aedca5c362ef36340a907;p=thirdparty%2Fgcc.git

expr.c (cpp_classify_number): Warn about dfp constant for -pedantic.

libcpp/
        * expr.c (cpp_classify_number): Warn about dfp constant for -pedantic.
gcc/testsuite/
        * gcc.dg/fltconst-pedantic-dfp.c: New test.

From-SVN: r124731
---

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index b195815eda09..159cee585207 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,7 @@
 2007-05-14  Janis Johnson  <janis187@us.ibm.com>
 
+        * expr.c (cpp_classify_number): Warn about dfp constant for -pedantic.
+
 	PR c/31924
 	* gcc.dg/fltconst-1.c: New test.
 
diff --git a/gcc/testsuite/gcc.dg/fltconst-pedantic-dfp.c b/gcc/testsuite/gcc.dg/fltconst-pedantic-dfp.c
new file mode 100644
index 000000000000..d0d1c4c52fc9
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/fltconst-pedantic-dfp.c
@@ -0,0 +1,6 @@
+/* { dg-do compile } */
+/* { dg-options "-pedantic" } */
+
+double a = 1.dl;	/* { dg-warning "decimal float" } */
+double b = 1.df;	/* { dg-warning "decimal float" } */
+double c = 1.dd;	/* { dg-warning "decimal float" } */
diff --git a/libcpp/ChangeLog b/libcpp/ChangeLog
index 5b941ff9cca7..31d96e8b6845 100644
--- a/libcpp/ChangeLog
+++ b/libcpp/ChangeLog
@@ -1,5 +1,7 @@
 2007-05-14  Janis Johnson  <janis187@us.ibm.com>
 
+        * expr.c (cpp_classify_number): Warn about dfp constant for -pedantic.
+
 	PR c/31924
 	* expr.c (interpret_float_suffix): Check for invalid suffix.
 
diff --git a/libcpp/expr.c b/libcpp/expr.c
index 8401daee032f..20090195acc1 100644
--- a/libcpp/expr.c
+++ b/libcpp/expr.c
@@ -273,6 +273,10 @@ cpp_classify_number (cpp_reader *pfile, const cpp_token *token)
           return CPP_N_INVALID;
         }
 
+      if ((result & CPP_N_DFLOAT) && CPP_PEDANTIC (pfile))
+	cpp_error (pfile, CPP_DL_PEDWARN,
+		   "decimal float constants are a GCC extension");
+
       result |= CPP_N_FLOATING;
     }
   else