kern
annotate src/klibc/ctype.c @ 8:78d5c304ddd0
minor changes
author | John Tsiombikas <nuclear@member.fsf.org> |
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date | Wed, 16 Feb 2011 07:50:25 +0200 |
parents | |
children |
rev | line source |
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nuclear@2 | 1 #include "ctype.h" |
nuclear@2 | 2 |
nuclear@2 | 3 int isalnum(int c) |
nuclear@2 | 4 { |
nuclear@2 | 5 return isalpha(c) || isdigit(c); |
nuclear@2 | 6 } |
nuclear@2 | 7 |
nuclear@2 | 8 int isalpha(int c) |
nuclear@2 | 9 { |
nuclear@2 | 10 return isupper(c) || islower(c); |
nuclear@2 | 11 } |
nuclear@2 | 12 |
nuclear@2 | 13 int isblank(int c) |
nuclear@2 | 14 { |
nuclear@2 | 15 return c == ' ' || c == '\t'; |
nuclear@2 | 16 } |
nuclear@2 | 17 |
nuclear@2 | 18 int isdigit(int c) |
nuclear@2 | 19 { |
nuclear@2 | 20 return c >= '0' && c <= '9'; |
nuclear@2 | 21 } |
nuclear@2 | 22 |
nuclear@2 | 23 int isupper(int c) |
nuclear@2 | 24 { |
nuclear@2 | 25 return c >= 'A' && c <= 'Z'; |
nuclear@2 | 26 } |
nuclear@2 | 27 |
nuclear@2 | 28 int islower(int c) |
nuclear@2 | 29 { |
nuclear@2 | 30 return c >= 'a' && c <= 'z'; |
nuclear@2 | 31 } |
nuclear@2 | 32 |
nuclear@2 | 33 int isgraph(int c) |
nuclear@2 | 34 { |
nuclear@2 | 35 return c > ' ' && c <= '~'; |
nuclear@2 | 36 } |
nuclear@2 | 37 |
nuclear@2 | 38 int isprint(int c) |
nuclear@2 | 39 { |
nuclear@2 | 40 return isgraph(c) || c == ' '; |
nuclear@2 | 41 } |
nuclear@2 | 42 |
nuclear@2 | 43 int isspace(int c) |
nuclear@2 | 44 { |
nuclear@2 | 45 return isblank(c) || c == '\f' || c == '\n' || c == '\r' || c == '\v'; |
nuclear@2 | 46 } |
nuclear@2 | 47 |
nuclear@2 | 48 int toupper(int c) |
nuclear@2 | 49 { |
nuclear@2 | 50 return islower(c) ? (c + ('A' - 'a')) : c; |
nuclear@2 | 51 } |
nuclear@2 | 52 |
nuclear@2 | 53 int tolower(int c) |
nuclear@2 | 54 { |
nuclear@2 | 55 return isupper(c) ? (c + ('A' - 'a')) : c; |
nuclear@2 | 56 } |