Support NV_ZERO_IS_ALLBITS_ZERO on Win32 (re: change 24898)

The try.c test program added to Configure by change 24898 outputs
"Yes" using each of VC++, GCC and BCC32, so here goes...

p4raw-id: //depot/perl@24905

diff --git a/win32/config.bc b/win32/config.bc
index 5434b33..5b43d2e 100644 (file)
--- a/win32/config.bc
+++ b/win32/config.bc
@@ -306,6 +306,7 @@ d_nanosleep='undef'
 d_nice='undef'
 d_nl_langinfo='undef'
 d_nv_preserves_uv='define'
+d_nv_zero_is_allbits_zero='define'
 d_off64_t='undef'
 d_old_pthread_create_joinable='undef'
 d_oldpthreads='undef'

diff --git a/win32/config.gc b/win32/config.gc
index f86a4a5..604fa62 100644 (file)
--- a/win32/config.gc
+++ b/win32/config.gc
@@ -305,6 +305,7 @@ d_mymalloc='undef'
 d_nice='undef'
 d_nl_langinfo='undef'
 d_nv_preserves_uv='define'
+d_nv_zero_is_allbits_zero='define'
 d_off64_t='undef'
 d_old_pthread_create_joinable='undef'
 d_oldpthreads='undef'

diff --git a/win32/config.vc b/win32/config.vc
index 0baf3f5..6c2834a 100644 (file)
--- a/win32/config.vc
+++ b/win32/config.vc
@@ -305,6 +305,7 @@ d_mymalloc='undef'
 d_nice='undef'
 d_nl_langinfo='undef'
 d_nv_preserves_uv='define'
+d_nv_zero_is_allbits_zero='define'
 d_off64_t='undef'
 d_old_pthread_create_joinable='undef'
 d_oldpthreads='undef'

diff --git a/win32/config.vc64 b/win32/config.vc64
index c45b6bf..702c539 100644 (file)
--- a/win32/config.vc64
+++ b/win32/config.vc64
@@ -305,6 +305,7 @@ d_mymalloc='undef'
 d_nice='undef'
 d_nl_langinfo='undef'
 d_nv_preserves_uv='undef'
+d_nv_zero_is_allbits_zero='define'
 d_off64_t='undef'
 d_old_pthread_create_joinable='undef'
 d_oldpthreads='undef'

diff --git a/win32/config_H.bc b/win32/config_H.bc
index 9a8ab46..adccb81 100644 (file)
--- a/win32/config_H.bc
+++ b/win32/config_H.bc
@@ -3222,6 +3222,10 @@
  *     This symbol contains the number of bits a variable of type NVTYPE
  *     can preserve of a variable of type UVTYPE.
  */
+/* NV_ZERO_IS_ALLBITS_ZERO
+ *     This symbol, if defined, indicates that a variable of type NVTYPE
+ *     stores 0.0 in memory as all bits zero.
+ */
 #define        IVTYPE          long            /**/
 #define        UVTYPE          unsigned long           /**/
 #define        I8TYPE          char            /**/
@@ -3250,6 +3254,7 @@
 #define        NVSIZE          8               /**/
 #define        NV_PRESERVES_UV
 #define        NV_PRESERVES_UV_BITS    32
+#define NV_ZERO_IS_ALLBITS_ZERO
 
 /* IVdf:
  *     This symbol defines the format string used for printing a Perl IV

diff --git a/win32/config_H.gc b/win32/config_H.gc
index 7511a00..56ab22a 100644 (file)
--- a/win32/config_H.gc
+++ b/win32/config_H.gc
@@ -3222,6 +3222,10 @@
  *     This symbol contains the number of bits a variable of type NVTYPE
  *     can preserve of a variable of type UVTYPE.
  */
+/* NV_ZERO_IS_ALLBITS_ZERO
+ *     This symbol, if defined, indicates that a variable of type NVTYPE
+ *     stores 0.0 in memory as all bits zero.
+ */
 #define        IVTYPE          long            /**/
 #define        UVTYPE          unsigned long           /**/
 #define        I8TYPE          char            /**/
@@ -3250,6 +3254,7 @@
 #define        NVSIZE          8               /**/
 #define        NV_PRESERVES_UV
 #define        NV_PRESERVES_UV_BITS    32
+#define NV_ZERO_IS_ALLBITS_ZERO
 
 /* IVdf:
  *     This symbol defines the format string used for printing a Perl IV

diff --git a/win32/config_H.vc b/win32/config_H.vc
index 2012c69..b380158 100644 (file)
--- a/win32/config_H.vc
+++ b/win32/config_H.vc
@@ -3222,6 +3222,10 @@
  *     This symbol contains the number of bits a variable of type NVTYPE
  *     can preserve of a variable of type UVTYPE.
  */
+/* NV_ZERO_IS_ALLBITS_ZERO
+ *     This symbol, if defined, indicates that a variable of type NVTYPE
+ *     stores 0.0 in memory as all bits zero.
+ */
 #define        IVTYPE          long            /**/
 #define        UVTYPE          unsigned long           /**/
 #define        I8TYPE          char            /**/
@@ -3250,6 +3254,7 @@
 #define        NVSIZE          8               /**/
 #define        NV_PRESERVES_UV
 #define        NV_PRESERVES_UV_BITS    32
+#define NV_ZERO_IS_ALLBITS_ZERO
 
 /* IVdf:
  *     This symbol defines the format string used for printing a Perl IV

diff --git a/win32/config_H.vc64 b/win32/config_H.vc64
index c996d39..a298250 100644 (file)
--- a/win32/config_H.vc64
+++ b/win32/config_H.vc64
@@ -3222,6 +3222,10 @@
  *     This symbol contains the number of bits a variable of type NVTYPE
  *     can preserve of a variable of type UVTYPE.
  */
+/* NV_ZERO_IS_ALLBITS_ZERO
+ *     This symbol, if defined, indicates that a variable of type NVTYPE
+ *     stores 0.0 in memory as all bits zero.
+ */
 #define        IVTYPE          __int64         /**/
 #define        UVTYPE          unsigned __int64                /**/
 #define        I8TYPE          char            /**/
@@ -3250,6 +3254,7 @@
 #define        NVSIZE          8               /**/
 #undef NV_PRESERVES_UV
 #define        NV_PRESERVES_UV_BITS    53
+#define NV_ZERO_IS_ALLBITS_ZERO
 
 /* IVdf:
  *     This symbol defines the format string used for printing a Perl IV