EADST

C printf Usage Guide

Code

 # include < stdio.h>

int main() {
    // Integer
    int intValue = 42;
    printf("Integer (%%d): %d\n", intValue);

    // Float/Double
    double doubleValue = 3.14159;
    printf("Float/Double (%%f): %f\n", doubleValue);

    // Character
    char charValue = 'A';
    printf("Character (%%c): %c\n", charValue);

    // String
    const char* stringValue = "Hello";
    printf("String (%%s): %s\n", stringValue);

    // Hexadecimal
    int hexValue = 255;
    printf("Hexadecimal (%%x): %x\n", hexValue);

    // Pointer
    int variable = 100;
    printf("Pointer (%%p): %p\n", (void*)&variable);

    // Additional examples showing formatting options
    printf("\n--- Formatting Examples ---\n");
    printf("Right-aligned (%%10d): '%10d'\n", intValue);
    printf("Left-aligned (%%-10d): '%-10d'\n", intValue);
    printf("Precision (%%0.2f): %0.2f\n", doubleValue);
    printf("Width and precision (%%8.2f): '%8.2f'\n", doubleValue);
    printf("Zero-padded (%%05d): %05d\n", intValue);

    return 0;
}

Output

Integer (%d): 42
Float/Double (%f): 3.141590
Character (%c): A
String (%s): Hello
Hexadecimal (%x): ff
Pointer (%p): 0x7ffeeb3a1b0c (this address will vary)

--- Formatting Examples ---
Right-aligned (%10d): '        42'
Left-aligned (%-10d): '42        '
Precision (%0.2f): 3.14
Width and precision (%8.2f): '    3.14'
Zero-padded (%05d): 00042