diff options
Diffstat (limited to 'vere/ext/nasm/nasmlib/bsi.c')
-rw-r--r-- | vere/ext/nasm/nasmlib/bsi.c | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/vere/ext/nasm/nasmlib/bsi.c b/vere/ext/nasm/nasmlib/bsi.c new file mode 100644 index 0000000..ae31f48 --- /dev/null +++ b/vere/ext/nasm/nasmlib/bsi.c @@ -0,0 +1,76 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 1996-2016 The NASM Authors - All Rights Reserved + * See the file AUTHORS included with the NASM distribution for + * the specific copyright holders. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following + * conditions are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and/or other materials provided + * with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, + * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * ----------------------------------------------------------------------- */ + +/* + * nasmlib.c library routines for the Netwide Assembler + */ + +#include "compiler.h" + + +#include "nasmlib.h" + +/* + * Binary search. + */ +int bsi(const char *string, const char **array, int size) +{ + int i = -1, j = size; /* always, i < index < j */ + while (j - i >= 2) { + int k = (i + j) / 2; + int l = strcmp(string, array[k]); + if (l < 0) /* it's in the first half */ + j = k; + else if (l > 0) /* it's in the second half */ + i = k; + else /* we've got it :) */ + return k; + } + return -1; /* we haven't got it :( */ +} + +int bsii(const char *string, const char **array, int size) +{ + int i = -1, j = size; /* always, i < index < j */ + while (j - i >= 2) { + int k = (i + j) / 2; + int l = nasm_stricmp(string, array[k]); + if (l < 0) /* it's in the first half */ + j = k; + else if (l > 0) /* it's in the second half */ + i = k; + else /* we've got it :) */ + return k; + } + return -1; /* we haven't got it :( */ +} |