Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Double to const char conversion
Top Forums Programming Double to const char conversion Post 302769847 by emily on Wednesday 13th of February 2013 04:09:16 PM
Old 02-13-2013
Double to const char conversion
Dear all,
I am using C and ROOT for programming. And I need to incorporate following in my code.

Code:
 char *fps=NULL;
  int dec=0,sign=0;
  float mean = h1->GetMean(1);   //0.001298
  fps= fcvt(mean,6 , &dec, &sign);

I need to provide this mean as const char to some other function to get displayed on my final plot.

Alas, this is working. But not compltely.
For the mean value = 0.001298. It is only displaying on the plot as 1298 (depeneding on the no of char I asked for).

What I want is to display mean as 0.001298.

Please help.

Thanks a lot,
emily
 

10 More Discussions You Might Find Interesting

1. Programming

char to int64 conversion

Hi, I'm converting a C program that I made using the Visual Studio. I now use GCC (over Linux) and can't find some equivalences. I changed my __int64 definitions to unsigned long long, but can't find an equivalent to the microsoft i64toa() function, which let you convert a char* to a 64 bit... (1 Reply)
Discussion started by: Raspoutine
1 Replies

2. Programming

diff b/w char const in C/C++

hi, what is the difference b/w char in C and C++.and give me the examples. Thanks... sarwan (3 Replies)
Discussion started by: sarwan
3 Replies

3. UNIX for Dummies Questions & Answers

int open(const char *pathname, int flags, mode_t mode) doubt...

hello everybody! I want to create a file with permissions for read, write, and execute to everybody using C, so I write this code: #include <stdio.h> #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> int main(){ int fileDescriptor; fileDescriptor =... (2 Replies)
Discussion started by: csnmgeek
2 Replies

4. UNIX for Dummies Questions & Answers

ANSI C, char to hex conversion

Hi, I have a char buf,ch; and the buf is filled with the result from MySQL server which I get like this numbytes = recv(sock, buf, 1024, 0));I have the followingcode to display the results printf("received %ld bytes:\n",numbytes); for(c=0;c<numbytes;c++){ ch = (char)buf; ... (2 Replies)
Discussion started by: alikims
2 Replies

5. Programming

concat const char * with char *

hello everybody! i have aproblem! i dont know how to concatenate const char* with char const char *buffer; char *b; sprintf(b,"result.txt"); strcat(buffer,b); thanx in advance (4 Replies)
Discussion started by: nicos
4 Replies

6. Programming

conversion to 'char' from 'int' warning

Hi, I wrote a simple code in C++ converting from UpperToLower case characters. However, my compiler gives me a warning: "warning: conversion to 'char' from 'int' may alter its value". Any tips? I would like to stress, I don't want to load my string into char array. int ToLower(string... (4 Replies)
Discussion started by: kajolo
4 Replies

7. Programming

error: invalid conversion from ‘const char*’ to ‘char*’

Compiling xpp (The X Printing Panel) on SL6 (RHEL6 essentially): xpp.cxx: In constructor ‘printFiles::printFiles(int, char**, int&)’: xpp.cxx:200: error: invalid conversion from ‘const char*’ to ‘char*’ The same error with all c++ constructors - gcc 4.4.4. If anyone can throw any light on... (8 Replies)
Discussion started by: GSO
8 Replies

8. Programming

Using const char*

I am writing some code in C++ to print a message using fprintf Here is an example void pr_desc( FILE* stream, int shift, const char* desc) { const char* format="%*s\e; fprintf(stream,format,shift,"",desc); } I call it using const char* desc; ... (4 Replies)
Discussion started by: kristinu
4 Replies

9. Programming

Invalid conversion from char* to char

Pointers are seeming to get the best of me and I get that error in my program. Here is the code #include <stdio.h> #include <stdlib.h> #include <string.h> #define REPORTHEADING1 " Employee Pay Hours Gross Tax Net\n" #define REPORTHEADING2 " Name ... (1 Reply)
Discussion started by: Plum
1 Replies

10. Programming

Bool vs char * conversion

I have a problem at make step to install a downloaded package consisted of different programs. In file included from kcdbext.cc:16:0: kcdbext.h: In member function �char* kyotocabinet::IndexDB::get(const char*, size_t, size_t*)’: kcdbext.h:1281:14: error: cannot convert �bool’ to... (3 Replies)
Discussion started by: yifangt
3 Replies

LEARN ABOUT MOJAVE

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)
All times are GMT -4. The time now is 09:27 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy