C data types, operators, control flow, functions, scope, storage classes and the compilation model. Excludes pointers and file I/O.
40 cards · basic cards · AI-written, checked twice. Edit anything.
- What are the four basic data types in C?
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int, char, float, double- What is the difference between signed and unsigned integer types?
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Signed can represent negative values, unsigned cannot but has a larger positive range- How do float and double differ in C?
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float is single-precision (32-bit), double is double-precision (64-bit) and more accurate- How do you perform an explicit type cast in C?
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(type) value, for example (int) 3.14 or (float) x- What keyword prevents a variable from being modified after initialization?
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const- What is the modulo operator % used for?
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It returns the remainder of a division operation- Name the three logical operators in C.
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&& (and), || (or), ! (not)- What is operator precedence?
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The order in which operators are evaluated in an expression when no parentheses specify otherwise- How does the ternary operator ?: work?
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condition ? value_if_true : value_if_false, it selects one of two values based on a condition- What are compound assignment operators?
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+=, -=, *=, /=, %=, &=, |=, ^=, <<=, >>=, they combine an operation with assignment- Name the six bitwise operators in C.
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& (and), | (or), ^ (xor), ~ (not), << (left shift), >> (right shift)- What is the difference between = and ==?
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= is the assignment operator, == is the comparison operator (tests equality)- What do the increment ++ and decrement -- operators do?
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They add or subtract 1 from a variable, respectively- List the six relational operators in C.
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< (less than), > (greater than), <= (less or equal), >= (greater or equal), == (equal), != (not equal)- Explain short-circuit evaluation with && and ||.
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With &&, evaluation stops once a false is found. With ||, evaluation stops once a true is found.
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