operands

Invalid Operands to binary / (have 'int *' and 'int')?

由 隐身守侯 提交于 2019-12-23 12:11:24
问题 Every time I try this: long crypt(int *integer) { printf("Enter five digit integer:\n"); scanf("%i",integer); int digit1=integer/10000; int digit2=(integer%10000)/1000; int digit3=(integer%1000)/100; int digit4=(integer%100)/10; int digit5=(integer%10)/1; const char *digit1c[10]; const char *digit2c[10]; const char *digit3c[10]; const char *digit4c[10]; const char *digit5c[10]; (There's more but this seems to be the problem, I'll add the rest by request.) then it return this error: math2.h:44

Sum function prob TypeError: unsupported operand type(s) for +: 'int' and 'str'

由 泪湿孤枕 提交于 2019-12-18 13:47:08
问题 I'm new to python (PYTHON 3.4.2) and I'm trying to make a program that adds and divides to find the average or the mean of a user's input, but I can't figure out how to add the numbers I receive. When I open the program at the command prompt it accepts the numbers I input and would print it also if I use a print function, but it will not sum the numbers up. I receive this error: TypeError: unsupported operand type(s) for +: 'int' and 'str' My code is below: #Take the user's input numbers =

TypeError: unsupported operand type(s) for +: 'float' and 'list' in Python 3.6.8

由 蹲街弑〆低调 提交于 2019-12-13 08:08:45
问题 I keep getting TypeError: unsupported operand type(s) for +: 'float' and 'list' . I am new to python programming and am trying to convert Matlab code into Python. Below is the tried python code. import math import cmath import numpy as np import random Tp = .1e-6 Xc = 2.e3 c = 3e8 B0 = 100e6 X0 = 50 w0 = 2 * cmath.pi * B0 fc = 1e9 wc = 2*cmath.pi * fc alpha = w0 / Tp wcm = wc - alpha * Tp Ts = (2 * (Xc - X0)) / c Tf = (2 * (Xc - X0)) / c + Tp dt = cmath.pi / (2 * alpha * Tp) n = 2 * math.ceil

Overloading += operator in C++ - How do you pass the left operand?

由 谁说我不能喝 提交于 2019-12-12 05:19:02
问题 I need to create an operator that accepts a double 'parameter'. myClass myobject(); double mydouble = 10000; mydouble += myobject; My operator: double operator+=(double value, const myclass& object) { value += object.value; return value; } The parameter value is being passed to the operator += as zero, even though mydouble is initialized to 10000. How do you create an operator that can accept the left operand as a parameter? 回答1: The correct prototype is the following: double& operator+=

What Does Adding One to a Character Array in C Do?

由 久未见 提交于 2019-12-11 06:25:22
问题 I'm looking through some code for learning purposes. I'm working through this portion of code. // e.g. const unsigned char data={0x1,0x7C ... } unsigned char buf[40]; memset(buf,0,40); buf[0] = 0x52; memcpy(buf+1, data, length); // What does buf+1 do in this situation? On the last line where memcpy is called what does buf+1 do? buf is a character array, so what does +1 do to it? 回答1: In C, every array name is a pointer, so buf here also means the pointer which point to buf[0].Then "buf+1"

CS0019 Operator cannot be applied to operands of type 'bool' and 'int'

由 ╄→гoц情女王★ 提交于 2019-12-03 20:15:27
问题 This program is in response to the assignment: "Create a method named Sum() that accepts any number of integer parameters and displays their sum. Write a Main() method that demonstrates that the Sum() method works correctly when passed one, three, five, or an array of ten integers. Save the program as UsingSum.cs ." from Microsoft® Visual C#® 2008, An Introduction to Object-Oriented Programming, 3e, Joyce Farrell My code in the "//step 1:" part is getting the CS0019 error, which states that

Invalid combination of opcode and operands [duplicate]

由 六眼飞鱼酱① 提交于 2019-12-02 10:48:11
问题 This question already has an answer here : Invalid combination of opcode and operands error (1 answer) Closed 3 years ago . SEGMENT .data print db "%d %d %d %d This is a test of printf", 10, 0 rowm dw 160 ;row multiplier iterations db 80 ;number of columns to set SEGMENT .bss offs resd 1 ;offset SEGMENT .text attribute equ 47h ;color attribute global _VText global _VPage extern _vm_buffer extern _printf _VText: push ebp mov ebp, esp push edi push esi push eax push es push ecx push edx mov esi

Invalid combination of opcode and operands [duplicate]

由 百般思念 提交于 2019-12-02 03:05:50
This question already has an answer here: Invalid combination of opcode and operands error 1 answer SEGMENT .data print db "%d %d %d %d This is a test of printf", 10, 0 rowm dw 160 ;row multiplier iterations db 80 ;number of columns to set SEGMENT .bss offs resd 1 ;offset SEGMENT .text attribute equ 47h ;color attribute global _VText global _VPage extern _vm_buffer extern _printf _VText: push ebp mov ebp, esp push edi push esi push eax push es push ecx push edx mov esi, [ebp+8] ;message mov es, [_vm_buffer] mov dword [offs], 0 mov ax, [ebp+12] ;row mul dword[rowm] ;multiply row by 160, result

Javascript: Comparing SINGLE Value Against MULTIPLE Values with OR Operands [duplicate]

由 点点圈 提交于 2019-12-01 08:34:49
Possible Duplicate: Check variable equality against a list of values Javascript if statement with multiple permissible conditions I must click the same 21 of 253 items (li) in a dropdown list (ul). Scrolling I'll have to do this for the same list on 500+ pages, I figured I could Javascript inject each ul, loop through and click each li which happens to be one of the 21. It seems I cannot do something like if(item[i] === ('aasdf'|'basdf'|'cwefw'|'asdfd'|'trehe'|'ferth'|'erthg'|'erthh'|'ierth'|'jeth'|'kerth'|'lerth'|'merth'|'psdfg'|'gregq'|'rsrgs'|'sress'|'srget'|'sergu'|'sdfgsv')) Is there a

postfix (prefix) increment, L-value and R-value (in C and C++)

由 不羁岁月 提交于 2019-11-30 21:10:14
I just learned the following facts: The result of a prefix increment (++var_name) is an R-value in C (at least, I am sure that it is not a L-value in C), but it is an L-value in C++. The result of a postfix increment (var_name++) is an R-value in C (at least, I am sure that it is not a L-value in C). This is also true in C++ (It says the result is a prvalue). I checked these in VS2010 (.cpp and .c) and Ubuntu (gcc and g++). In p.109 (5.3.2) of C++ Standard http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2011/n3242.pdf , it is written The operand of prefix ++ is modified by adding 1, or set
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