Moved one dir up.

[kopensolaris-gnu/glibc.git] / math / math.h

diff --git a/math/math.h b/math/math.h
index 274647e..a5d5b50 100644 (file)
--- a/math/math.h
+++ b/math/math.h
@@ -33,7 +33,7 @@ __BEGIN_DECLS
 #include <bits/huge_val.h>
 
 /* Get machine-dependent NAN value (returned for some domain errors).  */
-#ifdef  __USE_GNU
+#ifdef  __USE_ISOC9X
 # include <bits/nan.h>
 #endif
 
@@ -135,7 +135,7 @@ extern int signgam;
     FP_FAST_FMA
     FP_FAST_FMAF
     FP_FAST_FMAL
-               If defined it indicates that the the `fma' function
+               If defined it indicates that the `fma' function
                generally executes about as fast as a multiply and an add.
                This macro is defined only iff the `fma' function is
                implemented directly with a hardware multiply-add instructions.
@@ -200,8 +200,14 @@ enum
 
 #ifdef __USE_MISC
 /* Support for various different standard error handling behaviors.  */
-
-typedef enum { _IEEE_ = -1, _SVID_, _XOPEN_, _POSIX_ } _LIB_VERSION_TYPE;
+typedef enum
+{
+  _IEEE_ = -1, /* According to IEEE 754/IEEE 854.  */
+  _SVID_,      /* According to System V, release 4.  */
+  _XOPEN_,     /* Nowadays also Unix98.  */
+  _POSIX_,
+  _ISOC_       /* Actually this is ISO C 9X.  */
+} _LIB_VERSION_TYPE;
 
 /* This variable can be changed at run-time to any of the values above to
    affect floating point error handling behavior (it may also be necessary