tools lib string: Adopt prefixcmp() from perf and subcmd

Both had copies originating from git.git, move those to tools/lib/string.c, getting both tools/lib/subcmd/ and tools/perf/ to use it.

Arnaldo Carvalho de Melo committed 9 years ago

Commit 96395cb1 parent 3caeafc7 files · +13 −20Browse files

Showing the changes to tools/lib/string.c (1 of 7 files). Show all

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@@ -87,3 +87,12 @@ size_t __weak strlcpy(char dest, const char src, size_t size) · 86 unmodified lines
87	}	87	}
88	return ret;	88	return ret;
89	}	89	}
		90
		91	int prefixcmp(const char str, const char prefix)
		92	{
		93	for (; ; str++, prefix++)
		94	if (!*prefix)
		95	return 0;
		96	else if (str != prefix)
		97	return (unsigned char)prefix - (unsigned char)str;
		98	}