printf : printf « stdio.h « C Tutorial

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C Tutorial » stdio.h » printf   22. 24. 1. printf Item Value Header file stdio.h Declaration int printf(const char *format, ...); Function display message by format. Return the number of characters actually printed. A negative value indicates failure. #include <stdio.h> int main(void){  printf("Hi %c %d %s", 'c', 10, "there!"); } Hi c 10 there! The printf() Format Specifiers Code Format %a Hexadecimal output in the form 0xh.hhhhp+d (C99 only). %A Hexadecimal output in the form 0Xh.hhhhP+d (C99 only). %c Character. %d Signed decimal integers. %i Signed decimal integers. %e Scientific notation (lowercase e). %E Scientific notation (uppercase E). %f Decimal floating point. %F Decimal floating point (C99 only; produces uppercase INF, INFINITY, or NAN when applied to infinity or a value that is not a number. The %f specifier produces lowercase equivalents.) %g Uses %e or %f, whichever is shorter. %G Uses %E or %F, whichever is shorter. %o Unsigned octal. %s String of characters. %u Unsigned decimal integers. %x Unsigned hexadecimal (lowercase letters). %X Unsigned hexadecimal (uppercase letters). %p Displays a pointer. %n The associated argument must be a pointer to an integer. This specifier causes the number of characters written (up to the point at which the %n is encountered) to be stored in that integer. %% Prints a percent sign. 22. 24. printf 22. 24. 1.  printf

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