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| author | Freya Murphy <freya@freyacat.org> | 2025-04-03 12:30:34 -0400 |
|---|---|---|
| committer | Freya Murphy <freya@freyacat.org> | 2025-04-03 12:30:34 -0400 |
| commit | ec3c37d1d40d7b288584c234f4c3e7a600f2353d (patch) | |
| tree | bb587b33c4c793ff7a3317dfa958d69b0fa318a1 /lib/ctoi.c | |
| parent | move boot only headers to boot (diff) | |
| download | comus-ec3c37d1d40d7b288584c234f4c3e7a600f2353d.tar.gz comus-ec3c37d1d40d7b288584c234f4c3e7a600f2353d.tar.bz2 comus-ec3c37d1d40d7b288584c234f4c3e7a600f2353d.zip | |
new libs
Diffstat (limited to 'lib/ctoi.c')
| -rw-r--r-- | lib/ctoi.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/lib/ctoi.c b/lib/ctoi.c new file mode 100644 index 0000000..efe4fec --- /dev/null +++ b/lib/ctoi.c @@ -0,0 +1,14 @@ +#include <stdlib.h> + +int ctoi(char c) +{ + if (c >= '0' && c <= '9') { + return c - '0'; + } else if (c >= 'A' && c <= 'Z') { + return c - 'A' + 10; + } else if (c >= 'a' && c <= 'z') { + return c - 'a' + 10; + } else { + return -1; + } +} |