Sponsored Content
Top Forums Programming Logical Error With Type Conversion In C Post 303021964 by Don Cragun on Tuesday 21st of August 2018 03:40:42 PM
Old 08-21-2018
Quote:
Originally Posted by Corona688
Single and double quotes are very different things in C. In C, "A" means a string -- amounting to the array { 'A', '\0' }. And 'A' is just the number 65.



Numbers that large won't fit in your input array. chars are numbers, but their range is only -128 through +127. It'll work fine if you use a separate array of type 'int' output.
The POSIX standard requires that type char in the C language must be an 8-bit type. The C Standard doesn't specify whether type char is signed or unsigned. So the range of values that can be contained in a char is [-128, 127] on some POSIX conforming systems and [0, 255] on others.

On non-POSIX systems, the C standard allows the type char to be wider than 8 bits. On systems that use UTF-16 as the codeset underlying their system character sets, a char would likely be 16-bits wide.
This User Gave Thanks to Don Cragun For This Post:
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Error in creating logical partition

Dear Members, I am using SCO-Unix 5.0.5. I have created 2 logical drives but some of the blocks are overlapped and are now giving warning during startup. I have used fsck to settle the problems but to no avail. Kindly help me to sort out the problem. Thanks (3 Replies)
Discussion started by: nagendrajaiswal
3 Replies

2. Shell Programming and Scripting

Does KSH support data type conversion?

Hello,everyone here. I'm coding with KSH to achieve exploring the disk space and judging whether it closes to overflow.But It seems that no one way to convert a string variable to integer. df | read A B C D E F G H I J K L print ${L} Can I convert L to integer type? Thanks for... (2 Replies)
Discussion started by: joshuaduan
2 Replies

3. Shell Programming and Scripting

error during run: St9bad_alloc - Getting this error while using some conversion progr

Hi all, It will be very useful If you spare some time with me for this worrying error. I am calling a conversion program which is written in C++ for converting a file format to different format. It was working fine for this past 2 yrs. But now it is not working since the file size has been... (1 Reply)
Discussion started by: sathu_pec
1 Replies

4. AIX

Type of Logical Volume lost after vgexport/gvimport process

Hi, I have the next doubt about of lost of characteristic of LV in my original configuration # lsvg -l ifxvg ifxvg: LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT aw64m_01 jfs 1 1 1 open/syncd N/A aw64m_02 jfs 1... (1 Reply)
Discussion started by: cerber0
1 Replies

5. UNIX for Dummies Questions & Answers

Build Error: error: dereferencing pointer to incomplete type

I'm getting the following Error: prepare_pcap.c: In function `prepare_pkts': prepare_pcap.c:127: error: dereferencing pointer to incomplete type prepare_pcap.c:138: error: dereferencing pointer to incomplete type ==================================== This is the part of the relevant... (8 Replies)
Discussion started by: katwala
8 Replies

6. Shell Programming and Scripting

Logical error

I have this script to uvscan-update. Seems like that i am getting logical error at the end of the script. It is updating the script and also giving the error message to update it manually. I have deleted the DAT files to see if it will create new and it does. Below is the error and the script: ... (1 Reply)
Discussion started by: mk07md
1 Replies

7. Shell Programming and Scripting

Military type format date/time conversion

Hello All, I have a requirement to convert a 12 hour format to 24 hour time format and the sample input /out put is below Input Time format : Nov 2 2011 12:16AM Out Put Format : Nov 2 2011 0:16 Input : Nov 2 2011 4:16PM Out Put: Nov 2 2011 16:16 I have done this using a... (6 Replies)
Discussion started by: jambesh
6 Replies

8. Programming

type conversion C, atoi()

In the book "The C programming language"; second edition, chapter 2.7 there is a snippet which is supposed to: "convert a string of digits into its numeric equivalent". int atoi(char s) { int i, n; n = 0; for ( i = 0; s >= '0' && s <= '9'; ++i) n = 10 * n + (s -... (4 Replies)
Discussion started by: tornow
4 Replies

9. Shell Programming and Scripting

Logical if error

Hi All, I am writing a simple script to read a file and display the lines with char count between 20 and 25. I am stuck with the if condition here. Tried a lot but still getting an error on the if condition # if && if && My script is very simple as below, not able to understand... (7 Replies)
Discussion started by: nss280
7 Replies
sccshelp(1)						      General Commands Manual						       sccshelp(1)

NAME
sccshelp - ask for help on SCCS commands SYNOPSIS
[arg]... DESCRIPTION
The command finds information to explain a message from an SCCS command or to explain the use of a SCCS command. Zero or more arguments can be supplied. If no arguments are given, prompts for one: The arguments can be either message numbers (which normally appear in parentheses following messages) or command names, of one of the fol- lowing types: Type 1 Begins with nonnumerics, ends in numerics. The nonnumeric prefix is usually an abbreviation for the program or set of routines which produced the message (e.g., for message 6 from the command). Type 2 Does not contain numerics (as a command, such as Type 3 Is all numeric (e.g., The response of the program is the explanatory information related to the argument, if there is any. You can use to support other commands by means of the file. To do this, create help files in the appropriate format and add the location of the helpfiles to EXTERNAL INFLUENCES
Environment Variables determines the interpretation of text as single- and/or multibyte characters. determines the language in which messages are displayed. If is not specified or is null, it defaults to the value of If is not specified or is null, it defaults to "C" (see lang(5)). If any internationalization variable contains an invalid setting, all internationalization variables default to "C". See environ(5). International Code Set Support Single- and multibyte character code sets are supported. DIAGNOSTICS
When all else fails, try EXAMPLES
If you enter the SCCS command without parameters, you would get the message: If you request help for the command: it displays: If you request help for the error number: it displays: WARNINGS
Only SCCS commands currently use FILES
Directory containing files of message text List of commands supported by sccshelp File containing the locations of help files that are not in the directory sccshelp(1)
All times are GMT -4. The time now is 04:04 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy