Working with the regular expressions in Salesforce.com is same as in the Java. But the regex have restrictions to its complexity. For example, this regex throws compilation error:
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([a-zA-Z]*_*)*\.([a-zA-Z]*_*)*\.[0-9]* |
If you have to use multiple times the symbol * in your regex, the Salesforce.com evaluates your pattern as too complicated. Workaround The workaround is to… Read More »
When you are trying to connect docker to boot2docker on OSX, you probably got this error message:
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fata 0032 an error occurred trying to connect i/o timeout |
Solution to fix this error: Go to the Virtual Box -> Preferences -> Network -> Host-only networks Delete the host only networks and create one new. Then open the command line run this commands: Warning: The boot2docker… Read More »
When you need to convert hexadecimal number in C++ like 0DF52286 to standard IP address format like 13.245.34.134 you can use this code:
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static char* hex_to_ip(const char *input) { char *output = (char*)malloc(sizeof(char) * 16); unsigned int a, b, c, d; if (sscanf(input, "%2x%2x%2x%2x", &a, &b, &c, &d) != 4) return output; sprintf(output, "%u.%u.%u.%u", a, b, c, d); return output; } |
The method takes one argument which is the IP address in hexadecimal format.