Questions tagged [unsigned-char]

321 questions
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Convert hex numbers from unsigned char to string

I have an array of unsigned chars with hex values and I need to make a string of them. So when I have arr[0]=2b and arr[1]=fc I want to be able to make a string s="2bfc", not the characters from ascii codes. How can I do that?
M-guy
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How come the output of this C program is 1?

#include int main() { unsigned char c = (int) 0.54; for(; c++; printf("%d", c)); printf("%d", c); return 0; } And when I run the program the output is displayed as 1 How can the output be 1? Thanks in advance
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2 answers

Why can't I assign a function to a variable?

If I have the following code example: #include using namespace std; unsigned char Receive(void){ unsigned char q[4] = {0x0B, 0x0B, 0x0B, 0x0B}; return q; } void Transmit(){ unsigned char a[4]; a = Receive(); } int…
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1 answer

How do I declare a static const char array in Swift?

I need to convert following code to Swift static const char gSalt[] = { (unsigned char)0xf4, (unsigned char)0x28, (unsigned char)0x32, (unsigned char)0xab, (unsigned char)0x4b, (unsigned char)0xa1, (unsigned char)0xcc, (unsigned…
Muhammad Aamir Ali
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How to assign a hexadecimal value to an unsigned char variable in a C program

The hexadecimal value that I want to store in a variable is of length 32. "DC4938C31B9E8B30F32FC0F5EC894E16". I also want to then print this value but I don't know the format specifier in printf for unsigned char.
Manas
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How to represent unsigned char values as hexadecimal string?

I want to convert an unsigned char arrays content to a hexadecimal string representation. Can anyone help with a function or a way out? unsigned char codeslink[5] ={ 0x33, 0x74, 0x74, 0x73, 0x72}; std::string my_std_string(reinterpret_cast
DavidoLLP
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