The following is an example of return statement −Open Compiler #include <iostream> using namespace std; int sum(int a, int b){ // Here, returning sum of a and b return a + b; } int main(){ // Calling the function int ans = sum(5, 2); cout << "The sum of two integers...
如果未提供任何 return 運算式,Microsoft C 執行階段會傳回值,指出成功 (0) 或失敗 (非零值)。 範例 此範例是數個部分中的一個程式。 它會示範 return 陳述式,以及如何同時用來結束函式執行,以及選擇性地傳回值。 C 複製 // C_return_statement.c // Compile using: cl /W4 C_return_statement.c #...
复制 #include<stdio.h>voidfa(int i){if(i==2)return;printf("fa(): %d\n",i);}// implied return;intfb(int i){if(i>4)return4;printf("fb(): %d\n",i);return2;}intmain(void){fa(2);fa(1);int i=fb(5);// the return value 4 used to initializes ii=fb(i);// the retu...
if(S.top==S.base) exit(0); // 改掉 返回 return ERROR; 例如用 exit(0); 因为 void 函数体内 不能用 return 语句。50 c语言头文件的ER
unlock(); } if (!result) { JdbcUtils.close(holder.conn); LOG.info("connection recyle failed."); } } catch (Throwable e) { holder.clearStatementCache(); if (!holder.discard) { discardConnection(holder); holder.discard = true; } LOG.error("recyle error", e); recycleErrorCountUpdater...
"if" statement to conditionally return different values based on certain conditions. it's like having a switch – depending on what the condition evaluates to; you return different results. does the return statement always have to be the last line in a function? nope, not at all. while ...
Return Statement Cleanup Functions Best Practices and Consideration Pitfalls and Common Mistakes Syntax void exit (int status); Since exit() has no return type, use void here as the return type in C programming language. The variable status represents its status value, which is returned to the ...
jump-statement: returnexpressionopt; The value ofexpression, if present, is returned to the calling function. Ifexpressionis omitted, the return value of the function is undefined. The expression, if present, is converted to the type returned by the function. If the function was declared with ...
voidfoobar(){void*a＝0,b＝0,c＝0;do{a=createA();if(!a)break;b=createB();if(!b)break...
delay_ms(22);while(KEY0==0);return KEY_Right;}else return 0;} if(KEY1==0){delay_ms(22);if(KEY1==0){while(KEY1==0);delay_ms(22);while(KEY1==0);return KEY_Down;}else return 0;} if(KEY2==0){delay_ms(22);if(KEY2==0){while(KEY2==0);delay_ms(22);whi...