зеркало из https://github.com/mozilla/gecko-dev.git
90 строки
2.9 KiB
C
90 строки
2.9 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef prprintf_h___
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#define prprintf_h___
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/*
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* Portable, flexible, and buffer-safe sprintf variants.
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*/
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#include <stdarg.h>
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#include <stddef.h>
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PR_BEGIN_EXTERN_C
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/* XXX not used by JSRef */
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typedef int
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(*PR_vsxprintf_callback)(void *arg, const char *s, size_t slen);
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typedef int
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(*PR_sxprintf_callback) (void *arg, const char *s, size_t len);
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/*
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* sprintf into a fixed size buffer. Guarantees that a NUL is at the end
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* of the buffer. Returns the length of the written output, NOT including
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* the NUL, or (size_t)-1 if an error occurs.
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*/
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extern PR_PUBLIC_API(size_t)
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PR_snprintf(char *out, size_t outlen, const char *fmt, ...);
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/*
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* sprintf into a malloc'd buffer. Return a pointer to the malloc'd
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* buffer on success, NULL on failure.
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*/
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extern PR_PUBLIC_API(char *)
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PR_smprintf(const char *fmt, ...);
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/*
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* sprintf into a function. The function "stuff" is called with a string
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* to place into the output. "arg" is an opaque pointer used by the stuff
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* function to hold any state needed to do the storage of the output
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* data. The return value is a count of the number of characters fed to
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* the stuff function, or (size_t)-1 if an error occurs.
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*/
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extern PR_PUBLIC_API(size_t)
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PR_sxprintf(PR_sxprintf_callback stuff, void *arg, const char *fmt, ...);
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/*
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* "append" sprintf into a malloc'd buffer. "last" is the last value of
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* the malloc'd buffer. sprintf will append data to the end of last,
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* growing it as necessary using realloc. If last is NULL, PR_ssprintf
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* will allocate the initial string. The return value is the new value of
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* last for subsequent calls, or NULL if there is a malloc failure.
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*/
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extern PR_PUBLIC_API(char *)
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PR_sprintf_append(char *last, const char *fmt, ...);
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/*
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* Variable-argument-list forms of the above.
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*/
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extern PR_PUBLIC_API(size_t)
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PR_vsnprintf(char *out, size_t outlen, const char *fmt, va_list ap);
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extern PR_PUBLIC_API(char *)
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PR_vsmprintf(const char *fmt, va_list ap);
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extern PR_PUBLIC_API(size_t)
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PR_vsxprintf(PR_vsxprintf_callback stuff, void *arg, const char *fmt,
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va_list ap);
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extern PR_PUBLIC_API(char *)
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PR_vsprintf_append(char *last, const char *fmt, va_list ap);
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PR_END_EXTERN_C
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#endif /* prprintf_h___ */
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