diff options
| author | Paul Eggert <eggert@cs.ucla.edu> | 2014-12-25 04:19:17 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2014-12-25 15:44:23 -0800 |
| commit | 1e6879dbdb0832427f5c588c89a53a8a80768a00 (patch) | |
| tree | 155493c6e140264c05356c667a1c9547a45e336f /m4 | |
| parent | 8dba53d239f5ac00e930f13b73f59cb5b53ffbd1 (diff) | |
Prefer stpcpy to strcat
* admin/merge-gnulib (GNULIB_MODULES): Add stpcpy.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/stpcpy.c, m4/stpcpy.m4: New files, from gnulib.
* lib-src/ebrowse.c (sym_scope_1, operator_name, open_file):
* lib-src/emacsclient.c (get_server_config, set_local_socket)
(start_daemon_and_retry_set_socket):
* lib-src/etags.c (main, C_entries, relative_filename):
* lib-src/pop.c (sendline):
* lib-src/update-game-score.c (main):
* lwlib/xlwmenu.c (resource_widget_value):
* src/callproc.c (child_setup):
* src/dbusbind.c (xd_signature_cat):
* src/doc.c (get_doc_string, Fsnarf_documentation):
* src/editfns.c (Fuser_full_name):
* src/frame.c (xrdb_get_resource):
* src/gtkutil.c (xg_get_file_with_chooser):
* src/tparam.c (tparam1):
* src/xfns.c (xic_create_fontsetname):
* src/xrdb.c (gethomedir, get_user_db, get_environ_db):
* src/xsmfns.c (smc_save_yourself_CB):
Rewrite to avoid the need for strcat, typically by using stpcpy
and/or lispstpcpy. strcat tends to be part of O(N**2) algorithms.
* src/doc.c (sibling_etc):
* src/xrdb.c (xdefaults):
Now a top-level static constant.
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/gnulib-comp.m4 | 9 | ||||
| -rw-r--r-- | m4/stpcpy.m4 | 25 |
2 files changed, 34 insertions, 0 deletions
diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4 index 39ec8ae00e..49fdf5ef19 100644 --- a/m4/gnulib-comp.m4 +++ b/m4/gnulib-comp.m4 @@ -123,6 +123,7 @@ AC_DEFUN([gl_EARLY], # Code from module stdint: # Code from module stdio: # Code from module stdlib: + # Code from module stpcpy: # Code from module strftime: # Code from module string: # Code from module strtoimax: @@ -341,6 +342,12 @@ AC_DEFUN([gl_INIT], gl_STDINT_H gl_STDIO_H gl_STDLIB_H + gl_FUNC_STPCPY + if test $HAVE_STPCPY = 0; then + AC_LIBOBJ([stpcpy]) + gl_PREREQ_STPCPY + fi + gl_STRING_MODULE_INDICATOR([stpcpy]) gl_FUNC_GNU_STRFTIME gl_HEADER_STRING_H gl_FUNC_STRTOIMAX @@ -889,6 +896,7 @@ AC_DEFUN([gl_FILE_LIST], [ lib/stdint.in.h lib/stdio.in.h lib/stdlib.in.h + lib/stpcpy.c lib/strftime.c lib/strftime.h lib/string.in.h @@ -995,6 +1003,7 @@ AC_DEFUN([gl_FILE_LIST], [ m4/stdint.m4 m4/stdio_h.m4 m4/stdlib_h.m4 + m4/stpcpy.m4 m4/strftime.m4 m4/string_h.m4 m4/strtoimax.m4 diff --git a/m4/stpcpy.m4 b/m4/stpcpy.m4 new file mode 100644 index 0000000000..966ba951f5 --- /dev/null +++ b/m4/stpcpy.m4 @@ -0,0 +1,25 @@ +# stpcpy.m4 serial 8 +dnl Copyright (C) 2002, 2007, 2009-2014 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_STPCPY], +[ + dnl Persuade glibc <string.h> to declare stpcpy(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + dnl The stpcpy() declaration in lib/string.in.h uses 'restrict'. + AC_REQUIRE([AC_C_RESTRICT]) + + AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS]) + AC_CHECK_FUNCS([stpcpy]) + if test $ac_cv_func_stpcpy = no; then + HAVE_STPCPY=0 + fi +]) + +# Prerequisites of lib/stpcpy.c. +AC_DEFUN([gl_PREREQ_STPCPY], [ + : +]) |