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mykola2312/strhex.c

Last active March 31, 2022 14:59
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text hex to binary data
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strhex.c
int htoi(char h)
{
return h < 0x3A ? h - 0x30 : h - 0x57;
}
void strhex(const char* str, uint8_t* out)
{
for (unsigned i = 0; i < strlen(str) >> 1; i++)
out[i] = htoi(str[i<<1]) << 4 | htoi(str[i<<1|1]);
}
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