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| author | Nicholas Clark <nick@ccl4.org> | 2000-10-23 16:39:32 +0100 |
|---|---|---|
| committer | Jarkko Hietaniemi <jhi@iki.fi> | 2000-10-24 18:59:48 +0000 |
| commit | a7ffa9b9a1a8caeff31a83d25b70b5aca6ba0d12 (patch) | |
| tree | 43180689a571f5dc8ed050ed33678a7d835c73b6 /uconfig.h | |
| parent | 1724fb8e7df982f0fd79fb192e0146e474675132 (diff) | |
| download | perl-a7ffa9b9a1a8caeff31a83d25b70b5aca6ba0d12.tar.gz | |
Check if stdio supports tweaking lval and cnt simultaneously.
Subject: PATCH (Re: PerlIO - Configure tweak for Linux/glibc?)
Message-ID: <20001023153932.A10786@plum.flirble.org>
p4raw-id: //depot/perl@7427
Diffstat (limited to 'uconfig.h')
| -rw-r--r-- | uconfig.h | 13 |
1 files changed, 12 insertions, 1 deletions
@@ -2024,12 +2024,23 @@ * This symbol is defined if the FILE_cnt macro can be used as an * lvalue. */ +/* STDIO_PTR_LVAL_SETS_CNT: + * This symbol is defined if using the FILE_ptr macro as an lvalue + * to increase the pointer by n has the side effect of decreasing the + * value of File_cnt(fp) by n. + */ +/* STDIO_PTR_LVAL_NOCHANGE_CNT: + * This symbol is defined if using the FILE_ptr macro as an lvalue + * to increase the pointer by n leaves File_cnt(fp) unchanged. + */ /*#define USE_STDIO_PTR / **/ #ifdef USE_STDIO_PTR #define FILE_ptr(fp) ((fp)->_IO_read_ptr) -/*#define STDIO_PTR_LVALUE / **/ +# STDIO_PTR_LVALUE /**/ #define FILE_cnt(fp) ((fp)->_IO_read_end - (fp)->_IO_read_ptr) /*#define STDIO_CNT_LVALUE / **/ +/*#define STDIO_PTR_LVAL_SETS_CNT / **/ +/*#define STDIO_PTR_LVAL_NOCHANGE_CNT / **/ #endif /* USE_STDIO_BASE: |