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Diffstat (limited to 'private/crt32/stdio/vfprintf.c')
-rw-r--r-- | private/crt32/stdio/vfprintf.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/private/crt32/stdio/vfprintf.c b/private/crt32/stdio/vfprintf.c new file mode 100644 index 000000000..3fe2ba262 --- /dev/null +++ b/private/crt32/stdio/vfprintf.c @@ -0,0 +1,90 @@ +/*** +*vfprintf.c - fprintf from variable arg list +* +* Copyright (c) 1985-1991, Microsoft Corporation. All rights reserved. +* +*Purpose: +* defines vfprintf() - print formatted output, but take args from +* a stdargs pointer. +* +*Revision History: +* 09-02-83 RN original fprintf +* 06-17-85 TC rewrote to use new varargs macros, and to be vfprintf +* 04-13-87 JCR added const to declaration +* 11-06-87 JCR Multi-thread support +* 12-11-87 JCR Added "_LOAD_DS" to declaration +* 05-31-88 PHG Merged DLL and normal versions +* 06-15-88 JCR Near reference to _iob[] entries; improve REG variables +* 08-25-88 GJF Don't use FP_OFF() macro for the 386 +* 08-18-89 GJF Clean up, now specific to OS/2 2.0 (i.e., 386 flat +* model). Also fixed copyright and indents. +* 02-16-90 GJF Fixed copyright +* 03-20-90 GJF Made calling type _CALLTYPE1, added #include +* <cruntime.h> and removed #include <register.h>. +* 07-25-90 SBM Replaced <assertm.h> by <assert.h>, <varargs.h> by +* <stdarg.h> +* 10-03-90 GJF New-style function declarator. +* +*******************************************************************************/ + +#include <cruntime.h> +#include <stdio.h> +#include <assert.h> +#include <stdarg.h> +#include <file2.h> +#include <internal.h> +#include <os2dll.h> + +/*** +*int vfprintf(stream, format, ap) - print to file from varargs +* +*Purpose: +* Performs formatted output to a file. The arg list is a variable +* argument list pointer. +* +*Entry: +* FILE *stream - stream to write data to +* char *format - format string containing data format +* va_list ap - variable arg list pointer +* +*Exit: +* returns number of correctly output characters +* returns negative number if error occurred +* +*Exceptions: +* +*******************************************************************************/ + +int _CALLTYPE1 vfprintf ( + FILE *str, + const char *format, + va_list ap + ) +/* + * 'V'ariable argument 'F'ile (stream) 'PRINT', 'F'ormatted + */ +{ + REG1 FILE *stream; + REG2 int buffing; + REG3 int retval; +#ifdef MTHREAD + int index; +#endif + + assert(str != NULL); + assert(format != NULL); + + /* Init stream pointer */ + stream = str; + +#ifdef MTHREAD + index=_iob_index(stream); +#endif + _lock_str(index); + buffing = _stbuf(stream); + retval = _output(stream,format,ap ); + _ftbuf(buffing, stream); + _unlock_str(index); + + return(retval); +} |