to check the mapping for one input to one output in my application

sir i am facing a problem to map my inputs and outputs in the if condition that is in read input data bit for multiple pins kindly help me the same.

#include "stm32f0xx.h"
#include "stm32f0308_Discovery.h"

#define out0 GPIO_Pin_0
#define out1 GPIO_Pin_1
#define out2 GPIO_Pin_2
#define out3 GPIO_Pin_3
#define out4 GPIO_Pin_4
#define out_GPIO GPIOC

void TM_Delay_Init(void);
void TM_DelayMillis(uint32_t millis);
void TM_DelayMillis1(uint32_t millis);
void TM_DelayMillis2(uint32_t millis);

GPIO_InitTypeDef GPIO_InitStructure ;

uint32_t multiplier;

int main(void)
{

  SystemInit();
  SystemCoreClockUpdate();
  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA | RCC_AHBPeriph_GPIOC, ENABLE);

                /* Configure PA in input mode */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);

                /*configure PC in output mode */

GPIOC->MODER  |= ((GPIO_MODER_MODER0_0)|(GPIO_MODER_MODER1_0)|(GPIO_MODER_MODER2_0)|(GPIO_MODER_MODER3_0)|(GPIO_MODER_MODER4_0)|(GPIO_MODER_MODER5_0)) ;

        //GPIOC-> GPIO_MODER_MODER8_0 = 0x01;
GPIOC->OTYPER &= ~((GPIO_OTYPER_OT_0)|(GPIO_OTYPER_OT_1)|(GPIO_OTYPER_OT_2)|(GPIO_OTYPER_OT_3)|(GPIO_OTYPER_OT_4)|(GPIO_OTYPER_OT_5)) ;

        //GPIOC->OTYPER = 0x00;
GPIOC->OSPEEDR |= ((GPIO_OSPEEDER_OSPEEDR0)|(GPIO_OSPEEDER_OSPEEDR1)|(GPIO_OSPEEDER_OSPEEDR2)|(GPIO_OSPEEDER_OSPEEDR3)|(GPIO_OSPEEDER_OSPEEDR4)|(GPIO_OSPEEDER_OSPEEDR5));

        //GPIOC->OSPEEDR = 0x00;
GPIOC->PUPDR &= ~((GPIO_PUPDR_PUPDR0)|(GPIO_PUPDR_PUPDR1)|(GPIO_PUPDR_PUPDR2)|(GPIO_PUPDR_PUPDR3)|(GPIO_PUPDR_PUPDR4)|(GPIO_PUPDR_PUPDR5));

        while(1)
        {
                if(GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_0)==1)
                        {
                                GPIO_SetBits(GPIOC,(out0)|(out1)|(out2)|(out3)|(out4));
                                TM_DelayMillis(7);
                                GPIO_ResetBits(GPIOC,(out0)|(out1)|(out2)|(out3)|(out4));


                                while (GPIO_ReadInputDataBit(GPIOA, GPIO_Pin_0)==1)
                                {

                                GPIO_SetBits(GPIOC,(out0)|(out1)|(out2)|(out3)|(out4));
                                TM_DelayMillis1(3);
                                GPIO_ResetBits(GPIOC,(out0)|(out1)|(out2)|(out3)|(out4));
                                TM_DelayMillis2(22);

                                }

                        }
                }
        }

void TM_DelayMillis(uint32_t millis) { /* Multiply millis with multipler */ /* Substract 10 */ millis = 100 * millis * multiplier - 10; /* 4 cycles for one loop */ while (millis--);
}

void TM_DelayMillis1(uint32_t millis) { /* Multiply millis with multipler */ /* Substract 10 */ millis = 1 * millis * multiplier - 10; /* 4 cycles for one loop */ while (millis--);
}

void TM_DelayMillis2(uint32_t millis) { /* Multiply millis with multipler */ /* Substract 10 */ millis = 1 * millis * multiplier - 10; /* 4 cycles for one loop */ while (millis--);
}

void TM_Delay_Init(void) { RCC_ClocksTypeDef RCC_Clocks;

/* Get system clocks */ RCC_GetClocksFreq(&RCC_Clocks);

/* While loop takes 4 cycles */ /* For 1 us delay, we need to divide with 4M */ multiplier = RCC_Clocks.HCLK_Frequency / 4000000;
}