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cscanfformat-specifiers

Format specifier in scanf for bool datatype in C


I am using bool datatype in C std99 whose definitions are defined in <stdbool.h>. Now I want the user to give me input. What format specifier I must use in scanf to input the boolean value of 1 byte from the user and then manipulate it afterwards in my program.


Solution

  • There is none.

    Use a temp object as the size of _Bool is implementation dependent.

    #include <stdbool.h>
    #include <stdio.h>
    
    bool b;
    int temp;
    
    scanf("%d", &temp);
    b = temp;