printf

Formatted output using conversion specifiers.

Beginner

printf("%d mA, %.2f V, %s, 0x%04X\n", 20, 3.3, "ok", 255);

%d int, %u unsigned, %ld long, %f double, %c char, %s string, %p pointer, %x hex, %zu size_t. Width/precision: %8.3f. Use PRIu32 from inttypes.h for fixed-width types.

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