| 41 | #include "Global/GlobalDefines.h" |
| 42 | |
| 43 | NATRON_NAMESPACE_ENTER |
| 44 | |
| 45 | // see second answer of http://stackoverflow.com/questions/2342162/stdstring-formatting-like-sprintf |
| 46 | static |
| 47 | std::string |
| 48 | string_format(const std::string fmt, |
| 49 | ...) |
| 50 | { |
| 51 | int size = ( (int)fmt.size() ) * 2 + 50; // Use a rubric appropriate for your code |
| 52 | std::string str; |
| 53 | va_list ap; |
| 54 | |
| 55 | while (1) { // Maximum two passes on a POSIX system... |
| 56 | str.resize(size); |
| 57 | va_start(ap, fmt); |
| 58 | int n = vsnprintf( (char *)str.data(), size, fmt.c_str(), ap ); |
| 59 | va_end(ap); |
| 60 | if ( (n > -1) && (n < size) ) { // Everything worked |
| 61 | str.resize(n); |
| 62 | |
| 63 | return str; |
| 64 | } |
| 65 | if (n > -1) { // Needed size returned |
| 66 | size = n + 1; // For null char |
| 67 | } else { |
| 68 | size *= 2; // Guess at a larger size (OS specific) |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | return str; |
| 73 | } |
| 74 | |
| 75 | class LogPrivate |
| 76 | { |