libiberty.h
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上传日期:2007-01-06
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- /* Function declarations for libiberty.
- Written by Cygnus Support, 1994.
- The libiberty library provides a number of functions which are
- missing on some operating systems. We do not declare those here,
- to avoid conflicts with the system header files on operating
- systems that do support those functions. In this file we only
- declare those functions which are specific to libiberty. */
- #ifndef LIBIBERTY_H
- #define LIBIBERTY_H
- #include "ansidecl.h"
- /* Build an argument vector from a string. Allocates memory using
- malloc. Use freeargv to free the vector. */
- extern char **buildargv PARAMS ((char *));
- /* Free a vector returned by buildargv. */
- extern void freeargv PARAMS ((char **));
- /* Return the last component of a path name. */
- extern char *basename PARAMS ((char *));
- /* Concatenate an arbitrary number of strings, up to (char *) NULL.
- Allocates memory using xmalloc. */
- extern char *concat PARAMS ((const char *, ...));
- /* Check whether two file descriptors refer to the same file. */
- extern int fdmatch PARAMS ((int fd1, int fd2));
- /* Get the amount of time the process has run, in microseconds. */
- extern long get_run_time PARAMS ((void));
- /* Allocate memory filled with spaces. Allocates using malloc. */
- extern const char *spaces PARAMS ((int count));
- /* Return the maximum error number for which strerror will return a
- string. */
- extern int errno_max PARAMS ((void));
- /* Return the name of an errno value (e.g., strerrno (EINVAL) returns
- "EINVAL"). */
- extern const char *strerrno PARAMS ((int));
- /* Given the name of an errno value, return the value. */
- extern int strtoerrno PARAMS ((const char *));
- /* Return the maximum signal number for which strsignal will return a
- string. */
- extern int signo_max PARAMS ((void));
- /* Return a signal message string for a signal number
- (e.g., strsignal (SIGHUP) returns something like "Hangup"). */
- /* This is commented out as it can conflict with one in system headers.
- We still document its existence though. */
- /*extern const char *strsignal PARAMS ((int));*/
- /* Return the name of a signal number (e.g., strsigno (SIGHUP) returns
- "SIGHUP"). */
- extern const char *strsigno PARAMS ((int));
- /* Given the name of a signal, return its number. */
- extern int strtosigno PARAMS ((const char *));
- /* Register a function to be run by xexit. Returns 0 on success. */
- extern int xatexit PARAMS ((void (*fn) (void)));
- /* Exit, calling all the functions registered with xatexit. */
- #ifndef __GNUC__
- extern void xexit PARAMS ((int status));
- #else
- typedef void libiberty_voidfn PARAMS ((int status));
- __volatile__ libiberty_voidfn xexit;
- #endif
- /* Set the program name used by xmalloc. */
- extern void xmalloc_set_program_name PARAMS ((const char *));
- /* Allocate memory without fail. If malloc fails, this will print a
- message to stderr (using the name set by xmalloc_set_program_name,
- if any) and then call xexit.
- FIXME: We do not declare the parameter type (size_t) in order to
- avoid conflicts with other declarations of xmalloc that exist in
- programs which use libiberty. */
- extern PTR xmalloc ();
- /* Reallocate memory without fail. This works like xmalloc.
- FIXME: We do not declare the parameter types for the same reason as
- xmalloc. */
- extern PTR xrealloc ();
- #endif /* ! defined (LIBIBERTY_H) */