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author | Adam <you@example.com> | 2020-05-17 05:51:50 +0200 |
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committer | Adam <you@example.com> | 2020-05-17 05:51:50 +0200 |
commit | e611b132f9b8abe35b362e5870b74bce94a1e58e (patch) | |
tree | a5781d2ec0e085eeca33cf350cf878f2efea6fe5 /private/crt32/stdio/scanf.c | |
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Diffstat (limited to 'private/crt32/stdio/scanf.c')
-rw-r--r-- | private/crt32/stdio/scanf.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/private/crt32/stdio/scanf.c b/private/crt32/stdio/scanf.c new file mode 100644 index 000000000..f9c3f39d9 --- /dev/null +++ b/private/crt32/stdio/scanf.c @@ -0,0 +1,86 @@ +/*** +*scanf.c - read formatted data from stdin +* +* Copyright (c) 1985-1991, Microsoft Corporation. All rights reserved. +* +*Purpose: +* defines scanf() - reads formatted data from stdin +* +*Revision History: +* 09-02-83 RN initial version +* 04-13-87 JCR added const to declaration +* 06-24-87 JCR (1) Made declaration conform to ANSI prototype and use +* the va_ macros; (2) removed SS_NE_DS conditionals. +* 11-04-87 JCR Multi-thread support +* 12-11-87 JCR Added "_LOAD_DS" to declaration +* 05-27-88 PHG Merged DLL and normal versions +* 06-15-88 JCR Near reference to _iob[] entries; improve REG variables +* 08-17-89 GJF Clean up, now specific to OS/2 2.0 (i.e., 386 flat +* model). Also fixed copyright and indents. +* 02-15-90 GJF Fixed copyright +* 03-19-90 GJF Made calling type _CALLTYPE2, added #include +* <cruntime.h> and removed #include <register.h>. +* 07-23-90 SBM Replaced <assertm.h> by <assert.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 scanf(format, ...) - read formatted data from stdin +* +*Purpose: +* Reads formatted data from stdin into arguments. _input does the real +* work here. +* +*Entry: +* char *format - format string +* followed by list of pointers to storage for the data read. The number +* and type are controlled by the format string. +* +*Exit: +* returns number of fields read and assigned +* +*Exceptions: +* +*******************************************************************************/ + +int _CALLTYPE2 scanf ( + const char *format, + ... + ) +/* + * stdin 'SCAN', 'F'ormatted + */ +{ + REG1 FILE *stream = stdin; + REG2 int retval; +#ifdef MTHREAD + int index; +#endif + + va_list arglist; + + va_start(arglist, format); + + assert(format != NULL); + +#ifdef MTHREAD + index = _iob_index(stream); +#endif + + _lock_str(index); + + retval = (_input(stream,format,arglist)); + + _unlock_str(index); + + return(retval); +} |