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Merge pull request #168 from ros2/avoid_compiler_warning

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Avoid unused return value warning
This commit is contained in:
Esteve Fernandez 2015-12-04 12:27:24 -08:00
commit 67dcd9fe49
1 changed files with 12 additions and 1 deletions
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13
rclcpp/src/rclcpp/utilities.cpp
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@ -117,7 +117,18 @@ rclcpp::utilities::init(int argc, char * argv[])
// NOLINTNEXTLINE(runtime/arrays)
char error_string[error_length];
#ifndef _WIN32
strerror_r(errno, error_string, error_length);
#ifdef _GNU_SOURCE
char * msg = strerror_r(errno, error_string, error_length);
if (msg != error_string) {
strncpy(error_string, msg, error_length);
msg[error_length - 1] = '\0';
}
#else
int error_status = strerror_r(errno, error_string, error_length);
if (error_status != 0) {
throw std::runtime_error("Failed to get error string for errno: " + std::to_string(errno));
}
#endif
#else
strerror_s(error_string, error_length, errno);
#endif