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| author | Marcus Huderle <huderlem@gmail.com> | 2017-12-27 16:22:00 -0600 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-12-27 16:22:00 -0600 |
| commit | 6b611a3046a694d3972f2aa4df90d3ef78801217 (patch) | |
| tree | 05f295c00cbbc1d5987a05da37e746fb841d4d83 /libc/ctype/toascii.c | |
| parent | 58c860d6c48324eba66dd19540db5584d832cf58 (diff) | |
| parent | d88495e3f4061a411e654c7307aa94ac8a98c94b (diff) | |
Merge pull request #13 from ProjectRevoTPP/libc
add libc building to agbcc.
Diffstat (limited to 'libc/ctype/toascii.c')
| -rw-r--r-- | libc/ctype/toascii.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/libc/ctype/toascii.c b/libc/ctype/toascii.c new file mode 100644 index 0000000..4506f35 --- /dev/null +++ b/libc/ctype/toascii.c @@ -0,0 +1,41 @@ +/* +FUNCTION + <<toascii>>---force integers to ASCII range + +INDEX + toascii + +ANSI_SYNOPSIS + #include <ctype.h> + int toascii(int <[c]>); + +TRAD_SYNOPSIS + #include <ctype.h> + int toascii(<[c]>); + int (<[c]>); + +DESCRIPTION +<<toascii>> is a macro which coerces integers to the ASCII range (0--127) by zeroing any higher-order bits. + +You can use a compiled subroutine instead of the macro definition by +undefining this macro using `<<#undef toascii>>'. + +RETURNS +<<toascii>> returns integers between 0 and 127. + +PORTABILITY +<<toascii>> is not ANSI C. + +No supporting OS subroutines are required. +*/ + +#include <_ansi.h> +#include <ctype.h> +#undef toascii + +int +_DEFUN(toascii,(c),int c) +{ + return (c)&0177; +} + |