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Diffstat (limited to 'REORG.TODO/libio/iopadn.c')
-rw-r--r-- | REORG.TODO/libio/iopadn.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/REORG.TODO/libio/iopadn.c b/REORG.TODO/libio/iopadn.c new file mode 100644 index 0000000000..0abe92e20d --- /dev/null +++ b/REORG.TODO/libio/iopadn.c @@ -0,0 +1,69 @@ +/* Copyright (C) 1993-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. + + As a special exception, if you link the code in this file with + files compiled with a GNU compiler to produce an executable, + that does not cause the resulting executable to be covered by + the GNU Lesser General Public License. This exception does not + however invalidate any other reasons why the executable file + might be covered by the GNU Lesser General Public License. + This exception applies to code released by its copyright holders + in files containing the exception. */ + +#include "libioP.h" + +#define PADSIZE 16 +static char const blanks[PADSIZE] = +{' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' ',' '}; +static char const zeroes[PADSIZE] = +{'0','0','0','0','0','0','0','0','0','0','0','0','0','0','0','0'}; + +_IO_ssize_t +_IO_padn (_IO_FILE *fp, int pad, _IO_ssize_t count) +{ + char padbuf[PADSIZE]; + const char *padptr; + int i; + _IO_size_t written = 0; + _IO_size_t w; + + if (pad == ' ') + padptr = blanks; + else if (pad == '0') + padptr = zeroes; + else + { + for (i = PADSIZE; --i >= 0; ) + padbuf[i] = pad; + padptr = padbuf; + } + for (i = count; i >= PADSIZE; i -= PADSIZE) + { + w = _IO_sputn (fp, padptr, PADSIZE); + written += w; + if (w != PADSIZE) + return written; + } + + if (i > 0) + { + w = _IO_sputn (fp, padptr, i); + written += w; + } + return written; +} +libc_hidden_def (_IO_padn) |