本文整理汇总了C++中SdBaseFile::truncate方法的典型用法代码示例。如果您正苦于以下问题：C++ SdBaseFile::truncate方法的具体用法？C++ SdBaseFile::truncate怎么用？C++ SdBaseFile::truncate使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类SdBaseFile的用法示例。
在下文中一共展示了SdBaseFile::truncate方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: truncate
/** Truncate a file to a specified length. The current file position
* will be maintained if it is less than or equal to \a length otherwise
* it will be set to end of file.
*
* \param[in] path A path with a valid 8.3 DOS name for the file.
* \param[in] length The desired length for the file.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
* Reasons for failure include file is read only, file is a directory,
* \a length is greater than the current file size or an I/O error occurs.
*/
bool SdFat::truncate(const char* path, uint32_t length) {
SdBaseFile file;
if (!file.open(path, O_WRITE)) return false;
return file.truncate(length);
}