integerPart = (int)num; printf("Integer part: %dn", integerPart); return 0; } 在上述代码中,3.14被转换为整数3。通过这种方法,我们可以快速地从一个浮点数中提取出整数部分。 二、四舍五入 四舍五入是另一种将小数转换为整数的方法。在C语言中,可以使用math.h库中的round函数实现四舍五入。 #inclu...
printf("lround (-3.8) = %ld\n", std::lround(-3.8)); // -4 } { // std::llround(x): Returns the integer value that is nearest in value to x printf("llround (2.3) = %lld\n", std::llround(2.3)); // 2 printf("llround (3.8) = %lld\n", std::llround(3.8)); // ...
//使用可变参数列表实现print("s\t c\n","bit-tech",'w');#include<stdio.h>#include<stdarg.h>voidint_to_char(intnum){if((num /10) >0) int_to_char(num /10);putchar(num %10+48); }voidmy_print(charp[],...){char*str1 = p;intnum =0;char*pVal; va_list str; va_start(...
整型提升(integer promotion)将小整型提升为int或unsigned int,若int包含该小整型则转为int,否则转为unsigned int。整型提升仅发生于前置+-、~和移位的所有操作数,以及switch语句和常用代数转换中。常用代数转换(usual arithmatic conversion)发生在比较、算术(+-*/%)和位(&|^)运算中,它将两个操作数转换为相同的...
#include<stdio.h>#include<math.h>intmain(){double x=3.7;double intpart;double fractpart;fractpart=modf(x,&intpart);printf("x = %.2f, integer part = %.2f, fractional part = %.2f\n",x,intpart,fractpart);double distance=hypot(3.0,4.0);printf("Distance from origin to point (3, 4)...
Round to nearest 20. RS 232 C structure in Visual C++ Run-Time Check Failure #0 - The value of ESP was not properly saved across a function call. Run-Time Check Failure #2 - Stack around the variable 'newarray1' was corrupted. Run-Time Check Failure #2 - Stack around the variable ...
Num_digits Specifies the number of digits to which you want to round the number. Remarks If num_digits is greater than 0 (zero), then number is rounded to the specified number of decimal places. If num_digits is 0, then number is rounded to the nearest integer. If num_digits is less...
C 语言中的 round() round 函数是 C 语言中的术语。 函数 round roundf roundl 主体 #include <math.h>long double roundl(long double x);double round(double x);float roundf(float x); 描述 The round functions will return a rounded integer in the specified format that will be rounded to the...
参数列表:ROUND(n[,INTEGER])函数功能: 返回四舍五入后的值 返回值类型:NUMBER---INSERTINTOT_FUNCTION(FID,FNAME,PARM_LIST,FFUNC,RET_TYPE)VALUES('01011003','ROUND','ROUND(n[,INTEGER])','返回四舍五入后的值','NUMBER');COMMIT;SELECT*FROMT_FUNCTION;---...
public class Charac { public static void main(String args[]) { String s=Integer.toString(123); //将字符串类型转化为整型,并获取十进制表示 String s1=Integer.toBinaryString(123); //获取二进制表示 String s2=Integer.toOctalString(123); //获取八进制表示 String s3=Integer.toHexString(123); //...