Thread: How to create floats from const char* ?

  1. 07-28-2015 #1
    heatblazer
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    How to create floats from const char* ?

    Hello,
    I know it sounds trivial question but I need to convert a string literal like "2222111.50" to floating point number. atof() fails me. It returns 2222111 and discards the .50? I`ve concat a 'f' to the end but it`s the same. Any ideas. Also I know the string is weird, but that`s the data.
  2. 07-28-2015 #2
    laserlight
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    Post the smallest and simplest compilable program that demonstrates the problem.
    Quote Originally Posted by Bjarne Stroustrup (2000-10-14)
    I get maybe two dozen requests for help with some sort of programming or design problem every day. Most have more sense than to send me hundreds of lines of code. If they do, I ask them to find the smallest example that exhibits the problem and send me that. Mostly, they then find the error themselves. "Finding the smallest program that demonstrates the error" is a powerful debugging tool.
    Look up a C++ Reference and learn How To Ask Questions The Smart Way
  3. 07-28-2015 #3
    heatblazer
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    It was my misstake, using qDebug() which did not display values correctly. fprintf() shows right conversion. Sorry.
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