--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/testsuite/gcc.dg/c99-float-1.c	Fri Oct 27 22:46:09 2017 +0900
@@ -0,0 +1,169 @@
+/* Test for <float.h> C99 macros.  */
+/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
+/* { dg-do preprocess } */
+/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
+
+/* This test checks that the C99 macros (but not the C11 ones) are defined;
+   it does not check the correctness of their values.  */
+
+#include <float.h>
+
+#ifndef FLT_ROUNDS
+#error "FLT_ROUNDS undefined"
+#endif
+
+#ifndef FLT_RADIX
+#error "FLT_RADIX undefined"
+#endif
+
+#ifndef FLT_MANT_DIG
+#error "FLT_MANT_DIG undefined"
+#endif
+
+#ifndef FLT_DIG
+#error "FLT_DIG undefined"
+#endif
+
+#ifndef FLT_MIN_EXP
+#error "FLT_MIN_EXP undefined"
+#endif
+
+#ifndef FLT_MIN_10_EXP
+#error "FLT_MIN_10_EXP undefined"
+#endif
+
+#ifndef FLT_MAX_EXP
+#error "FLT_MAX_EXP undefined"
+#endif
+
+#ifndef FLT_MAX_10_EXP
+#error "FLT_MAX_10_EXP undefined"
+#endif
+
+#ifndef FLT_MAX
+#error "FLT_MAX undefined"
+#endif
+
+#ifndef FLT_EPSILON
+#error "FLT_EPSILON undefined"
+#endif
+
+#ifndef FLT_MIN
+#error "FLT_MIN undefined"
+#endif
+
+#ifndef DBL_MANT_DIG
+#error "DBL_MANT_DIG undefined"
+#endif
+
+#ifndef DBL_DIG
+#error "DBL_DIG undefined"
+#endif
+
+#ifndef DBL_MIN_EXP
+#error "DBL_MIN_EXP undefined"
+#endif
+
+#ifndef DBL_MIN_10_EXP
+#error "DBL_MIN_10_EXP undefined"
+#endif
+
+#ifndef DBL_MAX_EXP
+#error "DBL_MAX_EXP undefined"
+#endif
+
+#ifndef DBL_MAX_10_EXP
+#error "DBL_MAX_10_EXP undefined"
+#endif
+
+#ifndef DBL_MAX
+#error "DBL_MAX undefined"
+#endif
+
+#ifndef DBL_EPSILON
+#error "DBL_EPSILON undefined"
+#endif
+
+#ifndef DBL_MIN
+#error "DBL_MIN undefined"
+#endif
+
+#ifndef LDBL_MANT_DIG
+#error "LDBL_MANT_DIG undefined"
+#endif
+
+#ifndef LDBL_DIG
+#error "LDBL_DIG undefined"
+#endif
+
+#ifndef LDBL_MIN_EXP
+#error "LDBL_MIN_EXP undefined"
+#endif
+
+#ifndef LDBL_MIN_10_EXP
+#error "LDBL_MIN_10_EXP undefined"
+#endif
+
+#ifndef LDBL_MAX_EXP
+#error "LDBL_MAX_EXP undefined"
+#endif
+
+#ifndef LDBL_MAX_10_EXP
+#error "LDBL_MAX_10_EXP undefined"
+#endif
+
+#ifndef LDBL_MAX
+#error "LDBL_MAX undefined"
+#endif
+
+#ifndef LDBL_EPSILON
+#error "LDBL_EPSILON undefined"
+#endif
+
+#ifndef LDBL_MIN
+#error "LDBL_MIN undefined"
+#endif
+
+#ifndef FLT_EVAL_METHOD
+#error "FLT_EVAL_METHOD undefined"
+#endif
+
+#ifndef DECIMAL_DIG
+#error "DECIMAL_DIG undefined"
+#endif
+
+#ifdef FLT_DECIMAL_DIG
+#error "FLT_DECIMAL_DIG defined"
+#endif
+
+#ifdef DBL_DECIMAL_DIG
+#error "DBL_DECIMAL_DIG defined"
+#endif
+
+#ifdef LDBL_DECIMAL_DIG
+#error "LDBL_DECIMAL_DIG defined"
+#endif
+
+#ifdef FLT_HAS_SUBNORM
+#error "FLT_HAS_SUBNORM defined"
+#endif
+
+#ifdef DBL_HAS_SUBNORM
+#error "DBL_HAS_SUBNORM defined"
+#endif
+
+#ifdef LDBL_HAS_SUBNORM
+#error "LDBL_HAS_SUBNORM defined"
+#endif
+
+#ifdef FLT_TRUE_MIN
+#error "FLT_TRUE_MIN defined"
+#endif
+
+#ifdef DBL_TRUE_MIN
+#error "DBL_TRUE_MIN defined"
+#endif
+
+#ifdef LDBL_TRUE_MIN
+#error "LDBL_TRUE_MIN defined"
+#endif