c语言 scanf("%c");fflush(stdin),c language scanf - fflush(stdin) - doesnt work - Stack Overflow

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Closed 4 years ago.

When I use scanf more than one time the program do not wait for another input. Instead it exits

I learned that I could put a blank space before the conversion specifier in the scanf-function - yes that solved the problem and I guess that has to do with the inputstream, that is - if its a newline character in the inputstream the scanf will consume it immediately.

scanf(" %f", &value);

But if its so - why could I not use the fflush(stdin) instead? I have tried but it doesnt work.

#include

int main(void)

{

float value;

char ch;

printf("input value: ");

scanf("%f", &value);

fflush(stdin);

printf("input char: ");

scanf("%c", &ch);

return 0;

}