Come up with startswith function.

gcc/ada/ChangeLog:

	* gcc-interface/utils.c (def_builtin_1): Use startswith
	function instead of strncmp.

gcc/analyzer/ChangeLog:

	* sm-file.cc (is_file_using_fn_p): Use startswith
	function instead of strncmp.

gcc/ChangeLog:

	* builtins.c (is_builtin_name): Use startswith
	function instead of strncmp.
	* collect2.c (main): Likewise.
	(has_lto_section): Likewise.
	(scan_libraries): Likewise.
	* coverage.c (coverage_checksum_string): Likewise.
	(coverage_init): Likewise.
	* dwarf2out.c (is_cxx): Likewise.
	(gen_compile_unit_die): Likewise.
	* gcc-ar.c (main): Likewise.
	* gcc.c (init_spec): Likewise.
	(read_specs): Likewise.
	(execute): Likewise.
	(check_live_switch): Likewise.
	* genattrtab.c (write_attr_case): Likewise.
	(IS_ATTR_GROUP): Likewise.
	* gencfn-macros.c (main): Likewise.
	* gengtype.c (type_for_name): Likewise.
	(gen_rtx_next): Likewise.
	(get_file_langdir): Likewise.
	(write_local): Likewise.
	* genmatch.c (get_operator): Likewise.
	(get_operand_type): Likewise.
	(expr::gen_transform): Likewise.
	* genoutput.c (validate_optab_operands): Likewise.
	* incpath.c (add_sysroot_to_chain): Likewise.
	* langhooks.c (lang_GNU_C): Likewise.
	(lang_GNU_CXX): Likewise.
	(lang_GNU_Fortran): Likewise.
	(lang_GNU_OBJC): Likewise.
	* lto-wrapper.c (run_gcc): Likewise.
	* omp-general.c (omp_max_simt_vf): Likewise.
	* omp-low.c (omp_runtime_api_call): Likewise.
	* opts-common.c (parse_options_from_collect_gcc_options): Likewise.
	* read-rtl-function.c (function_reader::read_rtx_operand_r): Likewise.
	* real.c (real_from_string): Likewise.
	* selftest.c (assert_str_startswith): Likewise.
	* timevar.c (timer::validate_phases): Likewise.
	* tree.c (get_file_function_name): Likewise.
	* ubsan.c (ubsan_use_new_style_p): Likewise.
	* varasm.c (default_function_rodata_section): Likewise.
	(incorporeal_function_p): Likewise.
	(default_section_type_flags): Likewise.
	* system.h (startswith): Define startswith.

gcc/c-family/ChangeLog:

	* c-ada-spec.c (print_destructor): Use startswith
	function instead of strncmp.
	(dump_ada_declaration): Likewise.
	* c-common.c (disable_builtin_function): Likewise.
	(def_builtin_1): Likewise.
	* c-format.c (check_tokens): Likewise.
	(check_plain): Likewise.
	(convert_format_name_to_system_name): Likewise.

gcc/c/ChangeLog:

	* c-aux-info.c (affix_data_type): Use startswith
	function instead of strncmp.
	* c-typeck.c (build_function_call_vec): Likewise.
	* gimple-parser.c (c_parser_gimple_parse_bb_spec): Likewise.

gcc/cp/ChangeLog:

	* decl.c (duplicate_decls): Use startswith
	function instead of strncmp.
	(cxx_builtin_function): Likewise.
	(omp_declare_variant_finalize_one): Likewise.
	(grokfndecl): Likewise.
	* error.c (dump_decl_name): Likewise.
	* mangle.c (find_decomp_unqualified_name): Likewise.
	(write_guarded_var_name): Likewise.
	(decl_tls_wrapper_p): Likewise.
	* parser.c (cp_parser_simple_type_specifier): Likewise.
	(cp_parser_tx_qualifier_opt): Likewise.
	* pt.c (template_parm_object_p): Likewise.
	(dguide_name_p): Likewise.

gcc/d/ChangeLog:

	* d-builtins.cc (do_build_builtin_fn): Use startswith
	function instead of strncmp.
	* dmd/dinterpret.c (evaluateIfBuiltin): Likewise.
	* dmd/dmangle.c: Likewise.
	* dmd/hdrgen.c: Likewise.
	* dmd/identifier.c (Identifier::toHChars2): Likewise.

gcc/fortran/ChangeLog:

	* decl.c (variable_decl): Use startswith
	function instead of strncmp.
	(gfc_match_end): Likewise.
	* gfortran.h (gfc_str_startswith): Likewise.
	* module.c (load_omp_udrs): Likewise.
	(read_module): Likewise.
	* options.c (gfc_handle_runtime_check_option): Likewise.
	* primary.c (match_arg_list_function): Likewise.
	* trans-decl.c (gfc_get_symbol_decl): Likewise.
	* trans-expr.c (gfc_conv_procedure_call): Likewise.
	* trans-intrinsic.c (gfc_conv_ieee_arithmetic_function): Likewise.

gcc/go/ChangeLog:

	* gofrontend/runtime.cc (Runtime::name_to_code): Use startswith
	function instead of strncmp.

gcc/objc/ChangeLog:

	* objc-act.c (objc_string_ref_type_p): Use startswith
	function instead of strncmp.
	* objc-encoding.c (encode_type): Likewise.
	* objc-next-runtime-abi-02.c (has_load_impl): Likewise.

1 files changed, 22 insertions, 26 deletions

diff --git a/gcc/collect2.c b/gcc/collect2.c
index bd37143..0ddb169 100644
--- a/gcc/collect2.c
+++ b/gcc/collect2.c
@@ -956,7 +956,7 @@ main (int argc, char **argv)
       {
 	if (! strcmp (argv[i], "-debug"))
 	  debug = true;
-	else if (!strncmp (argv[i], "-fno-lto", 8))
+	else if (startswith (argv[i], "-fno-lto"))
 	  lto_mode = LTO_MODE_NONE;
         else if (! strcmp (argv[i], "-plugin"))
 	  {
@@ -970,7 +970,7 @@ main (int argc, char **argv)
 	  selected_linker = USE_GOLD_LD;
 	else if (strcmp (argv[i], "-fuse-ld=lld") == 0)
 	  selected_linker = USE_LLD_LD;
-	else if (strncmp (argv[i], "-o", 2) == 0)
+	else if (startswith (argv[i], "-o"))
 	  {
 	    /* Parse the output filename if it's given so that we can make
 	       meaningful temp filenames.  */
@@ -984,19 +984,19 @@ main (int argc, char **argv)
 	/* These flags are position independent, although their order
 	   is important - subsequent flags override earlier ones. */
 	else if (strcmp (argv[i], "-b64") == 0)
-	    aix64_flag = 1;
+	  aix64_flag = 1;
 	/* -bexport:filename always needs the :filename */
-	else if (strncmp (argv[i], "-bE:", 4) == 0
-	      || strncmp (argv[i], "-bexport:", 9) == 0)
-	    export_flag = 1;
+	else if (startswith (argv[i], "-bE:")
+		 || startswith (argv[i], "-bexport:"))
+	  export_flag = 1;
 	else if (strcmp (argv[i], "-brtl") == 0
 	      || strcmp (argv[i], "-bsvr4") == 0
 	      || strcmp (argv[i], "-G") == 0)
-	    aixrtl_flag = 1;
+	  aixrtl_flag = 1;
 	else if (strcmp (argv[i], "-bnortl") == 0)
-	    aixrtl_flag = 0;
+	  aixrtl_flag = 0;
 	else if (strcmp (argv[i], "-blazy") == 0)
-	    aixlazy_flag = 1;
+	  aixlazy_flag = 1;
 #endif
       }
 
@@ -1016,11 +1016,11 @@ main (int argc, char **argv)
 	const char *q = extract_string (&p);
 	if (*q == '-' && (q[1] == 'm' || q[1] == 'f'))
 	  num_c_args++;
-	if (strncmp (q, "-flto-partition=none", 20) == 0)
+	if (startswith (q, "-flto-partition=none"))
 	  no_partition = true;
-	else if (strncmp (q, "-fno-lto", 8) == 0)
+	else if (startswith (q, "-fno-lto"))
 	  lto_mode = LTO_MODE_NONE;
-	else if (strncmp (q, "-save-temps", 11) == 0)
+	else if (startswith (q, "-save-temps"))
 	  /* FIXME: Honour =obj.  */
 	  save_temps = true;
 	else if (strcmp (q, "-dumpdir") == 0)
@@ -1254,7 +1254,7 @@ main (int argc, char **argv)
 	(void) extract_string (&p);
 #ifdef COLLECT_EXPORT_LIST
       /* Detect any invocation with -fvisibility.  */
-      if (strncmp (q, "-fvisibility", 12) == 0)
+      if (startswith (q, "-fvisibility"))
 	visibility_flag = 1;
 #endif
     }
@@ -1303,7 +1303,7 @@ main (int argc, char **argv)
 	      break;
 
             case 'f':
-	      if (strncmp (arg, "-flto", 5) == 0)
+	      if (startswith (arg, "-flto"))
 		{
 #ifdef ENABLE_LTO
 		  /* Do not pass LTO flag to the linker. */
@@ -1315,13 +1315,13 @@ main (int argc, char **argv)
 #endif
 		}
 	      else if (!use_collect_ld
-		       && strncmp (arg, "-fuse-ld=", 9) == 0)
+		       && startswith (arg, "-fuse-ld="))
 		{
 		  /* Do not pass -fuse-ld={bfd|gold|lld} to the linker. */
 		  ld1--;
 		  ld2--;
 		}
-	      else if (strncmp (arg, "-fno-lto", 8) == 0)
+	      else if (startswith (arg, "-fno-lto"))
 		{
 		  /* Do not pass -fno-lto to the linker. */
 		  ld1--;
@@ -1462,7 +1462,7 @@ main (int argc, char **argv)
 		  ld2--;
 #endif
 		}
-	      else if (strncmp (arg, "--demangle", 10) == 0)
+	      else if (startswith (arg, "--demangle"))
 		{
 #ifndef HAVE_LD_DEMANGLE
 		  no_demangle = 0;
@@ -1479,7 +1479,7 @@ main (int argc, char **argv)
 		  ld2--;
 #endif
 		}
-	      else if (strncmp (arg, "--sysroot=", 10) == 0)
+	      else if (startswith (arg, "--sysroot="))
 		target_system_root = arg + 10;
 	      else if (strcmp (arg, "--version") == 0)
 		verbose = true;
@@ -2307,13 +2307,9 @@ has_lto_section (void *data, const char *name ATTRIBUTE_UNUSED,
 {
   int *found = (int *) data;
 
-  if (strncmp (name, LTO_SECTION_NAME_PREFIX,
-	       sizeof (LTO_SECTION_NAME_PREFIX) - 1) != 0)
-    {
-      if (strncmp (name, OFFLOAD_SECTION_NAME_PREFIX,
-	           sizeof (OFFLOAD_SECTION_NAME_PREFIX) - 1) != 0)
-        return 1;
-    }
+  if (!startswith (name, LTO_SECTION_NAME_PREFIX)
+      && !startswith (name, OFFLOAD_SECTION_NAME_PREFIX))
+    return 1;
 
   *found = 1;
 
@@ -2619,7 +2615,7 @@ scan_libraries (const char *prog_name)
 	continue;
 
       name = p;
-      if (strncmp (name, "not found", sizeof ("not found") - 1) == 0)
+      if (startswith (name, "not found"))
 	fatal_error (input_location, "dynamic dependency %s not found", buf);
 
       /* Find the end of the symbol name.  */