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AP_Common: char_to_hex returns 0 on invalid char

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Randy Mackay 2024-07-03 20:20:57 +09:00 committed by Andrew Tridgell
parent dd927e1542
commit b6c5ad450d
1 changed files with 5 additions and 3 deletions
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8
libraries/AP_Common/AP_Common.cpp
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@ -97,10 +97,12 @@ size_t strncpy_noterm(char *dest, const char *src, size_t n)
*/ */
int16_t char_to_hex(char a) int16_t char_to_hex(char a)
{ {
if (a >= 'A' && a <= 'F') if (a >= 'A' && a <= 'F') {
return a - 'A' + 10; return a - 'A' + 10;
else if (a >= 'a' && a <= 'f') } else if (a >= 'a' && a <= 'f') {
return a - 'a' + 10; return a - 'a' + 10;
else } else if (a >= '0' && a <= '9') {
return a - '0'; return a - '0';
}
return 0;
} }