From 3e56e3d7f927f530c6ef2d506e4f4a745dcbcb1a Mon Sep 17 00:00:00 2001
From: Albert Cheng <acheng@hdfgroup.org>
Date: Fri, 21 May 2004 13:50:10 -0500
Subject: [svn-r8565] Purpose: Improvement

Description:
Break up the C99 integer types detection into even smaller
sub-module routines.  This has dropped the compile time (with
optimization) from 94 seconds to 6 seconds.

Platforms tested:
h5committested.

Misc. update:
---
 src/H5detect.c | 96 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 93 insertions(+), 3 deletions(-)

diff --git a/src/H5detect.c b/src/H5detect.c
index 3a7078d..2e7e33f 100644
--- a/src/H5detect.c
+++ b/src/H5detect.c
@@ -100,6 +100,10 @@ static void detect_C89_integers(void);
 static void detect_C89_floats(void);
 static void detect_C99_integers(void);
 static void detect_C99_floats(void);
+static void detect_C99_integers8(void);
+static void detect_C99_integers16(void);
+static void detect_C99_integers32(void);
+static void detect_C99_integers64(void);
 static void detect_alignments(void);
 static size_t align_g[] = {1, 2, 4, 8, 16};
 static jmp_buf jbuf_g;
@@ -1153,9 +1157,9 @@ detect_C89_floats(void)
 
 
 /*-------------------------------------------------------------------------
- * Function:	detect_C99_integers
+ * Function:	detect_C99_integers8
  *
- * Purpose:	Detect C99 integer types
+ * Purpose:	Detect C99 8 bit integer types
  *
  * Return:	void
  *
@@ -1167,7 +1171,7 @@ detect_C89_floats(void)
  *-------------------------------------------------------------------------
  */
 static void
-detect_C99_integers(void)
+detect_C99_integers8(void)
 {
 #if H5_SIZEOF_INT8_T>0
     DETECT_I(int8_t, 		  INT8,         d[nd]); nd++;
@@ -1187,6 +1191,26 @@ detect_C99_integers(void)
 #if H5_SIZEOF_UINT_FAST8_T>0
     DETECT_I(uint_fast8_t, 	  UINT_FAST8,   d[nd]); nd++;
 #endif
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	detect_C99_integers16
+ *
+ * Purpose:	Detect C99 16 bit integer types
+ *
+ * Return:	void
+ *
+ * Programmer:	Albert Cheng
+ *		2004/05/20
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+detect_C99_integers16(void)
+{
 #if H5_SIZEOF_INT16_T>0
     DETECT_I(int16_t, 		  INT16,        d[nd]); nd++;
 #endif
@@ -1205,6 +1229,26 @@ detect_C99_integers(void)
 #if H5_SIZEOF_UINT_FAST16_T>0
     DETECT_I(uint_fast16_t, 	  UINT_FAST16,  d[nd]); nd++;
 #endif
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	detect_C99_integers32
+ *
+ * Purpose:	Detect C99 32 bit integer types
+ *
+ * Return:	void
+ *
+ * Programmer:	Albert Cheng
+ *		2004/05/20
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+detect_C99_integers32(void)
+{
 #if H5_SIZEOF_INT32_T>0
     DETECT_I(int32_t, 		  INT32,        d[nd]); nd++;
 #endif
@@ -1223,6 +1267,26 @@ detect_C99_integers(void)
 #if H5_SIZEOF_UINT_FAST32_T>0
     DETECT_I(uint_fast32_t, 	  UINT_FAST32,  d[nd]); nd++;
 #endif
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	detect_C99_integers64
+ *
+ * Purpose:	Detect C99 64 bit integer types
+ *
+ * Return:	void
+ *
+ * Programmer:	Albert Cheng
+ *		2004/05/20
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+detect_C99_integers64(void)
+{
 #if H5_SIZEOF_INT64_T>0
     DETECT_I(int64_t, 		  INT64,        d[nd]); nd++;
 #endif
@@ -1258,6 +1322,32 @@ detect_C99_integers(void)
 
 
 /*-------------------------------------------------------------------------
+ * Function:	detect_C99_integers
+ *
+ * Purpose:	Detect C99 integer types
+ *
+ * Return:	void
+ *
+ * Programmer:	Albert Cheng
+ *		2004/05/20
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+detect_C99_integers(void)
+{
+    /* break it down to more subroutines so that each module subroutine */
+    /* is smaller and takes less time to compile with optimization on.  */
+    detect_C99_integers8();
+    detect_C99_integers16();
+    detect_C99_integers32();
+    detect_C99_integers64();
+}
+
+
+/*-------------------------------------------------------------------------
  * Function:	detect_C99_floats
  *
  * Purpose:	Detect C99 floating point types
-- 
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