What are the symbols for relational operations in C language?

c language relational operation symbols include ", >=, ==, !=". Relational operators are all binary operators, and their function is to determine the relationship between the two expressions; the priority of relational operators is lower than that of arithmetic operators and higher than that of assignment operators; their operation results are only 0 or 1. The result is 1 when the condition is true, and 0 when the condition is not true.

##c language relational operation symbols include , >=, ==, !=.

The function of the relational operator is to determine the relationship between the two expressions. Note that this is to determine the size relationship, not other relationships.

# Relational operators are all binary operators, and their associativity is left associative. Relational operators have lower precedence than arithmetic operators and higher than assignment operators. Among the six relational operators, , >= have the same precedence, which is higher than == and !=, and == and != have the same precedence.

The operation result of relational operators is only 0 or 1. When the condition is true, the result is 1, and when the condition is not true, the result is 0

#include <stdio.h>
int main(){
    char c=&#39;k&#39;;
    int i=1, j=2, k=3;
    float x=3e+5, y=0.85;
    int result_1 = &#39;a&#39;+5<c, result_2 = x-5.25<=x+y;
    printf( "%d, %d\n", result_1, -i-2*j>=k+1 );
    printf( "%d, %d\n", 1<j<5, result_2 );
    printf( "%d, %d\n", i+j+k==-2*j, k==j==i+5 );
    return 0;
}

Running result:

1, 0
1, 1
0, 0

For expressions containing multiple relational operators, such as k==j= =i 5, according to the left associativity of the operator, first calculate k==j, this expression is not established, and its value is 0, and then calculate 0==i 5, it is not established, so the expression value is 0.

It should be reminded that == means equal, and = means assignment. You should pay attention to the distinction and avoid confusion.

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