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c - What is this thing: "\x30\xff\xff\x31\xff\xff\xff\xff" called?

Stack Overflow
These are called hexadecimal escape sequences. It's basically just an optional way of writing this: char next_ptr[8] = {0x30, 0xff, 0xff,...
39 months ago

c - MPLABX XC8 Compiler - implicit signed to unsigned conversion?

Stack Overflow
Integer types smaller than int (e.g. unsigned char ) are promoted to int when an operation is performed on them.
23 months ago

c - Converting chars to integers is creating a negative number?

Stack Overflow
Change this: char find_mean(char * x). to this: unsigned char find_mean(unsigned char * x). since your array is of type unsigned char .
51 months ago

c - What characters are legal to use in string literals?

Stack Overflow
The portable characters that can apoear in the program source are exactly these: the 26 uppercase letters of the Latin alphabet
119 months ago

C++ Error - warning: comparison between signed and unsigned integer expressions [-Wsign-compare]

Stack Overflow
would like to know how to fix them all, please! The diagnostic says that you are comparing numbers of different signedness.
51 months ago

How is the type of auto determined when multiplying a value by a static_cast [duplicate]

Stack Overflow
I expect these results for a, c, and d, but I'm baffled by b. 64 clearly fits in a 8-bit unsigned char. Can anyone explain, please?
81 months ago

java - Why is Arrays.equals(char[], char[]) 8 times faster than all the other versions?

Stack Overflow
@Marco13 guess was right. HotSpot JVM has an intrinsic (i.e. special hand-coded implementation) for Arrays.equals(char[], char[]) , but not...
97 months ago

c - standardising bit fields using unions (making them portable)

Stack Overflow
does this means that the bit fields are going to be portable across all the compilers. No, the cited text about unions somehow making...
92 months ago

En c++ aparece la advertencia "warning: comparison between signed and unsigned integer expressions [-Wsign-compare]"

Stack Overflow en español
Formato de números con y sin signo en binario. Los ordenadores almacenan números en binario; como no puedes guardar el símbolo de negativo...
100 months ago

c - Почему возникает ошибка Invalid memory reference (SIGSEGV)?

Stack Overflow на русском
Показал ваш код компилятору: $ gcc -std=c11 -pedantic -Wall -Wextra -Werror temp.c temp.c: In function 'get_ext': temp.c:18:16: error:...
25 months ago