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concat.c: Include string.h. 

* concat.c: Include string.h.  Fix int vs size_t usage.
        Simplify the iteration loops.  Use memcpy.

From-SVN: r43149
This commit is contained in:
Richard Henderson 2001-06-10 11:57:15 -07:00 committed by Richard Henderson
parent 33a1b84b69
commit 0bdcca681d
2 changed files with 36 additions and 49 deletions
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5
libiberty/ChangeLog
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@ -1,3 +1,8 @@
2001-06-10 Richard Henderson <rth@redhat.com>
* concat.c: Include string.h. Fix int vs size_t usage.
Simplify the iteration loops. Use memcpy.
2001-05-16 Matt Kraai <kraai@alumni.carnegiemellon.edu>
* partition.c: Fix misspelling of `implementation'.

80
libiberty/concat.c
View File

@ -1,5 +1,5 @@
/* Concatenate variable number of strings.
Copyright (C) 1991, 1994 Free Software Foundation, Inc.
Copyright (C) 1991, 1994, 2001 Free Software Foundation, Inc.
Written by Fred Fish @ Cygnus Support
This file is part of the libiberty library.
@ -62,14 +62,13 @@ NOTES
#include <varargs.h>
#endif
#ifdef __STDC__
#include <stddef.h>
extern size_t strlen (const char *s);
#else
extern int strlen ();
#endif
#define NULLP (char *)0
# if HAVE_STRING_H
# include <string.h>
# else
# if HAVE_STRINGS_H
# include <strings.h>
# endif
# endif
/* VARARGS */
#ifdef ANSI_PROTOTYPES
@ -81,7 +80,7 @@ concat (va_alist)
va_dcl
#endif
{
register int length;
register size_t length;
register char *newstr;
register char *end;
register const char *arg;
@ -90,8 +89,7 @@ concat (va_alist)
const char *first;
#endif
/* First compute the size of the result and get sufficient memory. */
/* First compute the size of the result and get sufficient memory. */
#ifdef ANSI_PROTOTYPES
va_start (args, first);
#else
@ -99,53 +97,37 @@ concat (va_alist)
first = va_arg (args, const char *);
#endif
if (first == NULLP)
length = 0;
else
{
length = strlen (first);
while ((arg = va_arg (args, const char *)) != NULLP)
{
length += strlen (arg);
}
}
newstr = (char *) xmalloc (length + 1);
length = 0;
for (arg = first; arg ; arg = va_arg (args, const char *))
length += strlen (arg);
va_end (args);
newstr = (char *) xmalloc (length + 1);
/* Now copy the individual pieces to the result string. */
if (newstr != NULLP)
{
#ifdef ANSI_PROTOTYPES
va_start (args, first);
va_start (args, first);
#else
va_start (args);
first = va_arg (args, const char *);
va_start (args);
first = va_arg (args, const char *);
#endif
end = newstr;
if (first != NULLP)
{
arg = first;
while (*arg)
{
*end++ = *arg++;
}
while ((arg = va_arg (args, const char *)) != NULLP)
{
while (*arg)
{
*end++ = *arg++;
}
}
}
*end = '\000';
va_end (args);
}
return (newstr);
end = newstr;
for (arg = first; arg ; arg = va_arg (args, const char *))
{
length = strlen (arg);
memcpy (end, arg, length);
end += length;
}
*end = '\000';
va_end (args);
return newstr;
}
#ifdef MAIN
#define NULLP (char *)0
/* Simple little test driver. */