lang-options.h, decl2.c: Add -fno-enforce-eh-specs.

        * lang-options.h, decl2.c: Add -fno-enforce-eh-specs.
        * cp-tree.h: Declare flag_enforce_eh_specs.
        * decl.c (store_parm_decls, finish_function): Check it.

        C library functions don't throw.
        * Makefile.in (cfns.h): New target.
        (except.o): Depend on it.
        * Make-lang.in (cc1plus): Depend on cfns.gperf.
        * cfns.gperf: New file.
        * cfns.h: Generated.
        * except.c: Include it.
        (nothrow_libfn_p): New fn.
        * decl.c (grokfndecl): Use it.
        * cp-tree.h: Declare it.

From-SVN: r32469

1 files changed, 219 insertions, 0 deletions

diff --git a/gcc/cp/cfns.gperf b/gcc/cp/cfns.gperf
new file mode 100644
index 0000000..d7a530a
--- /dev/null
+++ b/gcc/cp/cfns.gperf
@@ -0,0 +1,219 @@
+# The standard C library functions, for feeding to gperf; the result is used
+# by nothrow_libfn_p.
+#
+#   [lib.res.on.exception.handling]: None of the functions from the
+#   Standard C library shall report an error by throwing an
+#   exception, unless it calls a program-supplied function that
+#   throws an exception.
+#
+# bsearch and qsort are commented out because they can call such functions.
+#
+abort
+abs
+acos
+asctime
+asin
+atan
+atan2
+atexit
+atof
+atoi
+atol
+#bsearch
+btowc
+calloc
+ceil
+clearerr
+clock
+cos
+cosh
+ctime
+difftime
+div
+exit
+exp
+fabs
+fclose
+feof
+ferror
+fflush
+fgetc
+fgetpos
+fgets
+fgetwc
+fgetws
+floor
+fmod
+fopen
+fprintf
+fputc
+fputs
+fputwc
+fputws
+fread
+free
+freopen
+frexp
+fscanf
+fseek
+fsetpos
+ftell
+fwide
+fwprintf
+fwrite
+fwscanf
+getc
+getchar
+getenv
+gets
+getwc
+getwchar
+gmtime
+isalnum
+isalpha
+iscntrl
+isdigit
+isgraph
+islower
+isprint
+ispunct
+isspace
+isupper
+iswalnum
+iswalpha
+iswcntrl
+iswctype
+iswdigit
+iswgraph
+iswlower
+iswprint
+iswpunct
+iswspace
+iswupper
+iswxdigit
+isxdigit
+labs
+ldexp
+ldiv
+localeconv
+localtime
+log
+log10
+longjmp
+malloc
+mblen
+mbrlen
+mbrtowc
+mbsinit
+mbsrtowcs
+mbstowcs
+mbtowc
+memchr
+memcmp
+memcpy
+memmove
+memset
+mktime
+modf
+perror
+pow
+printf
+putc
+putchar
+puts
+putwc
+putwchar
+#qsort
+raise
+rand
+realloc
+remove
+rename
+rewind
+scanf
+setbuf
+setlocale
+setvbuf
+signal
+sin
+sinh
+sprintf
+sqrt
+srand
+sscanf
+strcat
+strchr
+strcmp
+strcoll
+strcpy
+strcspn
+strerror
+strftime
+strlen
+strncat
+strncmp
+strncpy
+strpbrk
+strrchr
+strspn
+strstr
+strtod
+strtok
+strtol
+strtoul
+strxfrm
+swprintf
+swscanf
+system
+tan
+tanh
+time
+tmpfile
+tmpnam
+tolower
+toupper
+towctrans
+towlower
+towupper
+ungetc
+ungetwc
+vfprintf
+vfwprintf
+vprintf
+vsprintf
+vswprintf
+vwprintf
+wcrtomb
+wcscat
+wcschr
+wcscmp
+wcscoll
+wcscpy
+wcscspn
+wcsftime
+wcslen
+wcsncat
+wcsncmp
+wcsncpy
+wcspbrk
+wcsrchr
+wcsrtombs
+wcsspn
+wcsstr
+wcstod
+wcstok
+wcstol
+wcstombs
+wcstoul
+wcsxfrm
+wctob
+wctomb
+wctrans
+wctype
+wmemchr
+wmemcmp
+wmemcpy
+wmemmove
+wmemset
+wprintf
+wscanf