61012eef84
This commit introduces a new inline common function "startswith" which takes two string arguments and returns nonzero if the first string starts with the second. It also updates the 295 places where this logic was written out longhand to use the new function. gdb/ChangeLog: * common/common-utils.h (startswith): New inline function. All places where this logic was used updated to use the above.
80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
/* Shared general utility routines for GDB, the GNU debugger.
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Copyright (C) 1986-2015 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef COMMON_UTILS_H
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#define COMMON_UTILS_H
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/* If possible, define FUNCTION_NAME, a macro containing the name of
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the function being defined. Since this macro may not always be
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defined, all uses must be protected by appropriate macro definition
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checks (Eg: "#ifdef FUNCTION_NAME").
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Version 2.4 and later of GCC define a magical variable `__PRETTY_FUNCTION__'
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which contains the name of the function currently being defined.
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This is broken in G++ before version 2.6.
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C9x has a similar variable called __func__, but prefer the GCC one since
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it demangles C++ function names. */
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#if (GCC_VERSION >= 2004)
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#define FUNCTION_NAME __PRETTY_FUNCTION__
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#else
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#if defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L
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#define FUNCTION_NAME __func__ /* ARI: func */
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#endif
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#endif
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/* xmalloc(), xrealloc() and xcalloc() have already been declared in
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"libiberty.h". */
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/* Like xmalloc, but zero the memory. */
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void *xzalloc (size_t);
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void xfree (void *);
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/* Like asprintf and vasprintf, but return the string, throw an error
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if no memory. */
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char *xstrprintf (const char *format, ...) ATTRIBUTE_PRINTF (1, 2);
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char *xstrvprintf (const char *format, va_list ap)
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ATTRIBUTE_PRINTF (1, 0);
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/* Like snprintf, but throw an error if the output buffer is too small. */
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int xsnprintf (char *str, size_t size, const char *format, ...)
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ATTRIBUTE_PRINTF (3, 4);
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/* Make a copy of the string at PTR with LEN characters
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(and add a null character at the end in the copy).
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Uses malloc to get the space. Returns the address of the copy. */
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char *savestring (const char *ptr, size_t len);
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/* The strerror() function can return NULL for errno values that are
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out of range. Provide a "safe" version that always returns a
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printable string. */
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extern char *safe_strerror (int);
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/* Return non-zero if the start of STRING matches PATTERN, zero
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otherwise. */
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static inline int
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startswith (const char *string, const char *pattern)
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{
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return strncmp (string, pattern, strlen (pattern)) == 0;
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}
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#endif
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