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| author | Igor Pashev <pashev.igor@gmail.com> | 2012-06-24 22:28:35 +0000 |
|---|---|---|
| committer | Igor Pashev <pashev.igor@gmail.com> | 2012-06-24 22:28:35 +0000 |
| commit | 3950ffe2a485479f6561c27364d3d7df5a21d124 (patch) | |
| tree | 468c6e14449d1b1e279222ec32f676b0311917d2 /src/lib/libast/string/strnacmp.c | |
| download | ksh-upstream.tar.gz | |
Imported Upstream version 93u+upstream
Diffstat (limited to 'src/lib/libast/string/strnacmp.c')
| -rw-r--r-- | src/lib/libast/string/strnacmp.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/lib/libast/string/strnacmp.c b/src/lib/libast/string/strnacmp.c new file mode 100644 index 0000000..4a6c9c6 --- /dev/null +++ b/src/lib/libast/string/strnacmp.c @@ -0,0 +1,66 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2011 AT&T Intellectual Property * +* and is licensed under the * +* Eclipse Public License, Version 1.0 * +* by AT&T Intellectual Property * +* * +* A copy of the License is available at * +* http://www.eclipse.org/org/documents/epl-v10.html * +* (with md5 checksum b35adb5213ca9657e911e9befb180842) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler <gsf@research.att.com> * +* David Korn <dgk@research.att.com> * +* Phong Vo <kpv@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped + +/* + * ccmapc(c, CC_NATIVE, CC_ASCII) and strncmp + */ + +#include <ast.h> +#include <ccode.h> + +#if _lib_strnacmp + +NoN(strnacmp) + +#else + +#include <ctype.h> + +int +strnacmp(const char* a, const char* b, size_t n) +{ +#if CC_NATIVE == CC_ASCII + return strncmp(a, b, n); +#else + register unsigned char* ua = (unsigned char*)a; + register unsigned char* ub = (unsigned char*)b; + register unsigned char* ue; + register unsigned char* m; + register int c; + register int d; + + m = ccmap(CC_NATIVE, CC_ASCII); + ue = ua + n; + while (ua < ue) + { + c = m[*ua++]; + if (d = c - m[*ub++]) + return d; + if (!c) + return 0; + } + return 0; +#endif +} + +#endif |