Description of printf() function in Keil C51-EEWORLD

Collect

In C51, when using the printf() function for formatted output, the format control characters are different from those in ANSI C.

In the format control characters, b stands for byte

Output uint8_t in decimal: %bu

Output int8_t in decimal: %bd

#include

void tst_printf (void) {

char a = 1;

int b = 12365;

long c = 0x7FFFFFFF;

unsigned char x = 'A';

unsigned int y = 54321;

unsigned long z = 0x4A6F6E00;

float f = 10.0;

float g = 22.95;

char buf[] = "Test String";

char *p = buf;

printf ("char %bd int %d long %ld\n",a,b,c);

printf ("Uchar %bu Uint %u Ulong %lu\n",x,y,z);

printf ("xchar %bx xint %x xlong %lx\n",x,y,z);

printf ("String %s is at address %p\n",buf,p);

printf ("%f != %g\n", f, g);

printf ("%*f != %*g\n", (int)8, f, (int)8, g);

}

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