91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
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/***
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*vprintf.c - printf from a var args pointer
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*
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* Copyright (c) 1985-2001, Microsoft Corporation. All rights reserved.
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*
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*Purpose:
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* defines vprintf() - print formatted data from an argument list pointer
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*
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*Revision History:
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* 09-02-83 RN original printf
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* 06-17-85 TC rewrote to use new varargs macros to be vprintf
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* 04-13-87 JCR added const to declaration
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* 11-06-87 JCR Multi-thread support
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* 12-11-87 JCR Added "_LOAD_DS" to declaration
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* 05-31-88 PHG Merged DLL and normal versions
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* 06-15-88 JCR Near reference to _iob[] entries; improve REG variables
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* 08-18-89 GJF Clean up, now specific to OS/2 2.0 (i.e., 386 flat
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* model). Also fixed copyright and indents.
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* 02-16-90 GJF Fixed copyright
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* 03-20-90 GJF Made calling type _CALLTYPE1, added #include
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* <cruntime.h> and removed #include <register.h>.
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* 07-25-90 SBM Replaced <assertm.h> by <assert.h>, <varargs.h> by
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* <stdarg.h>
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* 10-03-90 GJF New-style function declarator.
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* 04-06-93 SKS Replace _CRTAPI* with __cdecl
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* 09-06-94 CFW Replace MTHREAD with _MT.
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* 02-06-94 CFW assert -> _ASSERTE.
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* 03-07-95 GJF _[un]lock_str macros now take FILE * arg.
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* 03-02-98 GJF Exception-safe locking.
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*
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*******************************************************************************/
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#include <cruntime.h>
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#include <stdio.h>
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#include <dbgint.h>
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#include <stdarg.h>
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#include <internal.h>
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#include <file2.h>
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#include <mtdll.h>
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/***
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*int vprintf(format, ap) - print formatted data from an argument list pointer
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*
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*Purpose:
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* Prints formatted data items to stdout. Uses a pointer to a
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* variable length list of arguments instead of an argument list.
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*
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*Entry:
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* char *format - format string, describes data format to write
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* va_list ap - pointer to variable length arg list
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*
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*Exit:
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* returns number of characters written
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*
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*Exceptions:
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*
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*******************************************************************************/
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int __cdecl vprintf (
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const char *format,
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va_list ap
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)
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/*
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* stdout 'V'ariable, 'PRINT', 'F'ormatted
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*/
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{
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REG1 FILE *stream = stdout;
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REG2 int buffing;
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REG3 int retval;
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_ASSERTE(format != NULL);
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#ifdef _MT
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_lock_str(stream);
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__try {
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#endif
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buffing = _stbuf(stream);
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retval = _output(stream, format, ap );
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_ftbuf(buffing, stream);
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#ifdef _MT
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}
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__finally {
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_unlock_str(stream);
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}
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#endif
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return(retval);
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}
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