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Last change
on this file since 577 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
580 bytes
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| Line | |
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| 1 | /* |
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| 2 | FUNCTION |
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| 3 | <<strlwr>>---force string to lowercase |
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| 4 | |
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| 5 | INDEX |
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| 6 | strlwr |
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| 7 | |
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| 8 | SYNOPSIS |
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| 9 | #include <string.h> |
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| 10 | char *strlwr(char *<[a]>); |
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| 11 | |
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| 12 | DESCRIPTION |
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| 13 | <<strlwr>> converts each character in the string at <[a]> to |
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| 14 | lowercase. |
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| 15 | |
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| 16 | RETURNS |
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| 17 | <<strlwr>> returns its argument, <[a]>. |
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| 18 | |
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| 19 | PORTABILITY |
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| 20 | <<strlwr>> is not widely portable. |
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| 21 | |
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| 22 | <<strlwr>> requires no supporting OS subroutines. |
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| 23 | |
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| 24 | QUICKREF |
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| 25 | strlwr |
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| 26 | */ |
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| 27 | |
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| 28 | #include <string.h> |
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| 29 | #include <ctype.h> |
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| 30 | |
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| 31 | char * |
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| 32 | strlwr (char *s) |
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| 33 | { |
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| 34 | unsigned char *ucs = (unsigned char *) s; |
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| 35 | for ( ; *ucs != '\0'; ucs++) |
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| 36 | { |
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| 37 | *ucs = tolower(*ucs); |
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| 38 | } |
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| 39 | return s; |
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| 40 | } |
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