1 files changed, 29 insertions, 7 deletions
diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 9eb3b7c..c5509a8 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -4898,6 +4898,18 @@ v4si f (v4si a, v4si b, v4si c)
 @findex ispunct
 @findex isspace
 @findex isupper
+@findex iswalnum
+@findex iswalpha
+@findex iswblank
+@findex iswcntrl
+@findex iswdigit
+@findex iswgraph
+@findex iswlower
+@findex iswprint
+@findex iswpunct
+@findex iswspace
+@findex iswupper
+@findex iswxdigit
 @findex isxdigit
 @findex j0
 @findex j0f
@@ -5042,6 +5054,8 @@ v4si f (v4si a, v4si b, v4si c)
 @findex toascii
 @findex tolower
 @findex toupper
+@findex towlower
+@findex towupper
 @findex trunc
 @findex truncf
 @findex truncl
@@ -5127,13 +5141,13 @@ The ISO C99 functions
 @code{fmaxf}, @code{fmaxl}, @code{fmax}, @code{fma}, @code{fminf},
 @code{fminl}, @code{fmin}, @code{hypotf}, @code{hypotl}, @code{hypot},
 @code{ilogbf}, @code{ilogbl}, @code{ilogb}, @code{imaxabs},
-@code{isblank}, @code{lgammaf}, @code{lgammal}, @code{lgamma},
-@code{llabs}, @code{llrintf}, @code{llrintl}, @code{llrint},
-@code{llroundf}, @code{llroundl}, @code{llround}, @code{log1pf},
-@code{log1pl}, @code{log1p}, @code{log2f}, @code{log2l}, @code{log2},
-@code{logbf}, @code{logbl}, @code{logb}, @code{lrintf}, @code{lrintl},
-@code{lrint}, @code{lroundf}, @code{lroundl}, @code{lround},
-@code{nearbyintf}, @code{nearbyintl}, @code{nearbyint},
+@code{isblank}, @code{iswblank}, @code{lgammaf}, @code{lgammal},
+@code{lgamma}, @code{llabs}, @code{llrintf}, @code{llrintl},
+@code{llrint}, @code{llroundf}, @code{llroundl}, @code{llround},
+@code{log1pf}, @code{log1pl}, @code{log1p}, @code{log2f}, @code{log2l},
+@code{log2}, @code{logbf}, @code{logbl}, @code{logb}, @code{lrintf},
+@code{lrintl}, @code{lrint}, @code{lroundf}, @code{lroundl},
+@code{lround}, @code{nearbyintf}, @code{nearbyintl}, @code{nearbyint},
 @code{nextafterf}, @code{nextafterl}, @code{nextafter},
 @code{nexttowardf}, @code{nexttowardl}, @code{nexttoward},
 @code{remainderf}, @code{remainderl}, @code{remainder}, @code{remquof},
@@ -5160,6 +5174,14 @@ that are recognized in any mode since ISO C90 reserves these names for
 the purpose to which ISO C99 puts them.  All these functions have
 corresponding versions prefixed with @code{__builtin_}.
 
+The ISO C94 functions
+@code{iswalnum}, @code{iswalpha}, @code{iswcntrl}, @code{iswdigit},
+@code{iswgraph}, @code{iswlower}, @code{iswprint}, @code{iswpunct},
+@code{iswspace}, @code{iswupper}, @code{iswxdigit}, @code{towlower} and
+@code{towupper}
+are handled as built-in functions
+except in strict ISO C90 mode (@option{-ansi} or @option{-std=c89}).
+
 The ISO C90 functions
 @code{abort}, @code{abs}, @code{acos}, @code{asin}, @code{atan2},
 @code{atan}, @code{calloc}, @code{ceil}, @code{cosh}, @code{cos},