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introduce LONE_CHAR (optimized strcmp with one-char string)

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This commit is contained in:
Denis Vlasenko
2006-12-21 13:23:14 +00:00
parent 6910741067
commit bf66fbc8e2
17 changed files with 49 additions and 35 deletions
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6
include/libbb.h
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@ -263,6 +263,8 @@ extern char *xasprintf(const char *format, ...) __attribute__ ((format (printf,
//int NOT_LONE_DASH(const char *s) { return s[0] != '-' || s[1]; }
#define LONE_DASH(s) ((s)[0] == '-' && !(s)[1])
#define NOT_LONE_DASH(s) ((s)[0] != '-' || (s)[1])
#define LONE_CHAR(s,c) ((s)[0] == (c) && !(s)[1])
#define NOT_LONE_CHAR(s,c) ((s)[0] != (c) || (s)[1])
/* dmalloc will redefine these to it's own implementation. It is safe
* to have the prototypes here unconditionally. */
@ -386,7 +388,9 @@ extern void bb_vperror_msg(const char *s, va_list p);
extern void bb_vinfo_msg(const char *s, va_list p);
extern int bb_echo(int argc, char** argv);
/* applets which are useful from another applets */
extern int bb_cat(char** argv);
extern int bb_echo(char** argv);
extern int bb_test(int argc, char** argv);
#ifndef BUILD_INDIVIDUAL