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atof in C |
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Declaration:
double atof(const char *str); The string pointed to by the argument str is converted to a floating-point number (type double). Any initial whitespace characters are skipped (space, tab, carriage return, new line, vertical tab, or formfeed). The number may consist of an optional sign, a string of digits with an optional decimal character, and an optional e or E followed by a optionally signed exponent. Conversion stops when the first unrecognized character is reached. On success the converted number is returned. If no conversion can be made, zero is returned. If the value is out of range of the type double, then HUGE_VAL is returned with the appropriate sign and ERANGE is stored in the variable errno. If the value is too small to be returned in the type double, then zero is returned and ERANGE is stored in the variable errno. Add by Pancho You can edit it here |
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| Decontaminating Dangerous Drywall
A nanomaterial originally developed to fight toxic waste is now helping reduce debilitating fumes in homes with corrosive drywall. Developed by Kenneth Klabunde of Kansas State University, and improved over three decades with support from the National Science Foundation, the FAST-ACT material has been a tool of first responders since 2003. Now,
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