[英]GCC |warning: implicit declaration of function '_stricmp' [-Wimplicit-function-declaration]|
[英]My gcc compiler giving me warning for implicit declaration of function even though the declaration is clearly given in the code
我的 GCC 編譯器給我警告:
power.c: 在函數“main”中:power.c:9:36: 警告:函數“power”的隱式聲明 [-Wimplicit-function-declaration] 9 | printf("%d \t %d \t %d \n", i+1, 冪(2,i), 冪(-6,i));
而我已經明確地聲明了 power 函數的隱式,我在下面的代碼中給出了它:
#include <stdio.h>
int main(){
int i;
printf("%s \t %s \t %s \n", "Powers", "of 2", "of -6");
for (i = 0; i < 10; ++i)
printf("%d \t %d \t %d \n", i+1, power(2,i), power(-6,i));
return 0;
}
int power(int base, int n){
int i, p;
p = 1;
for (i=0; i <= n; ++i)
p = p * base;
return p;
}
您需要在調用之前轉發聲明您的power
函數:
int power(int base, int n);
int main(){
int i;
printf("%s \t %s \t %s \n", "Powers", "of 2", "of -6");
for (i = 0; i < 10; ++i)
printf("%d \t %d \t %d \n", i+1, power(2,i), power(-6,i));
return 0;
}
或者,您可以將power
的定義移到main
之前。
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