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src/share/vm/utilities/stringUtils.cpp@aefa2e84b424 (annotated)

src/share/vm/utilities/stringUtils.cpp

Thu, 19 Mar 2015 19:53:34 +0100

author

zmajo

date

Thu, 19 Mar 2015 19:53:34 +0100

changeset 7638

aefa2e84b424

parent 7089

6e0cb14ce59b

permissions

-rw-r--r--

8074869: C2 code generator can replace -0.0f with +0.0f on Linux
Summary: Instead of 'fpclass', use cast float->int and double->long to check if value is +0.0f and +0.0d, respectively.
Reviewed-by: kvn, simonis, dlong

iklam@7089	1	/*
iklam@7089	2	* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
iklam@7089	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
iklam@7089	4	*
iklam@7089	5	* This code is free software; you can redistribute it and/or modify it
iklam@7089	6	* under the terms of the GNU General Public License version 2 only, as
iklam@7089	7	* published by the Free Software Foundation.
iklam@7089	8	*
iklam@7089	9	* This code is distributed in the hope that it will be useful, but WITHOUT
iklam@7089	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
iklam@7089	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
iklam@7089	12	* version 2 for more details (a copy is included in the LICENSE file that
iklam@7089	13	* accompanied this code).
iklam@7089	14	*
iklam@7089	15	* You should have received a copy of the GNU General Public License version
iklam@7089	16	* 2 along with this work; if not, write to the Free Software Foundation,
iklam@7089	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
iklam@7089	18	*
iklam@7089	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
iklam@7089	20	* or visit www.oracle.com if you need additional information or have any
iklam@7089	21	* questions.
iklam@7089	22	*
iklam@7089	23	*/
iklam@7089	24
iklam@7089	25	#include "precompiled.hpp"
iklam@7089	26	#include "utilities/stringUtils.hpp"
iklam@7089	27
iklam@7089	28	int StringUtils::replace_no_expand(char* string, const char* from, const char* to) {
iklam@7089	29	int replace_count = 0;
iklam@7089	30	size_t from_len = strlen(from);
iklam@7089	31	size_t to_len = strlen(to);
iklam@7089	32	assert(from_len >= to_len, "must not expand input");
iklam@7089	33
iklam@7089	34	for (char* dst = string; *dst && (dst = strstr(dst, from)) != NULL;) {
iklam@7089	35	char* left_over = dst + from_len;
iklam@7089	36	memmove(dst, to, to_len); // does not copy trailing 0 of <to>
iklam@7089	37	dst += to_len; // skip over the replacement.
iklam@7089	38	memmove(dst, left_over, strlen(left_over) + 1); // copies the trailing 0 of <left_over>
iklam@7089	39	++ replace_count;
iklam@7089	40	}
iklam@7089	41
iklam@7089	42	return replace_count;
iklam@7089	43	}