Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
1.0 KB
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Rev | Line | |
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[444] | 1 | /* |
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| 2 | FUNCTION |
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| 3 | <<toascii>>, <<toascii_l>>---force integers to ASCII range |
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| 4 | |
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| 5 | INDEX |
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| 6 | toascii |
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| 7 | |
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| 8 | INDEX |
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| 9 | toascii_l |
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| 10 | |
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| 11 | SYNOPSIS |
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| 12 | #include <ctype.h> |
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| 13 | int toascii(int <[c]>); |
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| 14 | |
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| 15 | #include <ctype.h> |
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| 16 | int toascii_l(int <[c]>, locale_t <[locale]>); |
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| 17 | |
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| 18 | DESCRIPTION |
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| 19 | <<toascii>> is a macro which coerces integers to the ASCII range (0--127) by zeroing any higher-order bits. |
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| 20 | |
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| 21 | <<toascii_l>> is like <<toascii>> but performs the function based on the |
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| 22 | locale specified by the locale object locale. If <[locale]> is |
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| 23 | LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined. |
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| 24 | |
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| 25 | You can use a compiled subroutine instead of the macro definition by |
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| 26 | undefining this macro using `<<#undef toascii>>' or `<<#undef toascii_l>>'. |
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| 27 | |
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| 28 | RETURNS |
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| 29 | <<toascii>>, <<toascii_l>> return integers between 0 and 127. |
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| 30 | |
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| 31 | PORTABILITY |
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| 32 | <<toascii>> is X/Open, BSD and POSIX-1.2001, but marked obsolete in |
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| 33 | POSIX-1.2008. |
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| 34 | <<toascii_l>> is a GNU extension. |
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| 35 | |
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| 36 | No supporting OS subroutines are required. |
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| 37 | */ |
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| 38 | |
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| 39 | #include <_ansi.h> |
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| 40 | #include <ctype.h> |
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| 41 | #undef toascii |
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| 42 | |
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| 43 | int |
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| 44 | toascii (int c) |
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| 45 | { |
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| 46 | return (c)&0177; |
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| 47 | } |
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| 48 | |
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