A relational operator checks the relationship between two operands. If the relation is true, it returns 1; if the relation is false, it returns value 0.
Relational operators are used in decision making and loops (C For Loops, C While Loops)
| Operator | Meaning of Operator | Example |
|---|---|---|
| == | Equal to | 5 == 3 is evaluated to 0 |
| > | Greater than | 5 > 3 is evaluated to 1 |
| < | Less than | 5 < 3 is evaluated to 0 |
| != | Not equal to | 5 != 3 is evaluated to 1 |
| >= | Greater than or equal to | 5 >= 3 is evaluated to 1 |
| ⇐ | Less than or equal to | 5 <= 3 is evaluated to 0 |
C Relational Operators Using C Arrays
- Relational operators can also be used to compare arrays in C.
- When comparing arrays, the comparison is done element by element, starting from the first element of each array, until a difference is found.
- The result of the comparison is determined by the comparison of the corresponding elements.
Warning
The elements of the arrays must be of the same data type.
C Relational Operators Using C Chars
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When comparing characters, the comparison is based on their ASCII values.
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The ASCII table assigns a unique numerical value to each character, and
C Relational Operators Using C Strings
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When using relational operators with strings, the comparison is based on the ASCII values of the characters in the strings.
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The comparison is done character by character, starting from the leftmost character, until a difference is found.
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The result of the comparison is determined by the ASCII value of the characters being compared.