InternalZGY::Environment Class Reference

#include <environment.h>

Static Public Member Functions
static int	getNumericEnv (const char *name, int dflt=0)
	Get value as a number. More...
static std::string	getStringEnv (const char *name, const char *dflt=0)
	Get value as a string. More...
static void	putNumericEnv (const char *name, int value)
	Convert number to string and store in the environment.
static void	putStringEnv (const char *name, const char *value)
	Store the supplied string in the environment.

Detailed Description

Tiny helper class to access the environment variables of the process. Basically this is just a wrapper around getenv, but there are some Linux/Windows differences and it is a bad idea to duplicate that special handling too many places.

Member Function Documentation

getNumericEnv()

int InternalZGY::Environment::getNumericEnv ( const char *  name, int  dflt = 0  )

static

Get value as a number.

Get an environment variable as a number. If the environment variable is missing or empty then the supplied default value is returned instead. If no default value was given then 0 is returned. Trailing garbage is ignored, so if the variable doesn't start with a digit the function silently returns 0. I.e. NOT the provided default value.

getStringEnv()

std::string InternalZGY::Environment::getStringEnv ( const char *  name, const char *  dflt = 0  )

static

Get value as a string.

Get an environment variable as a std::string. If the environment variable is empty or missing then the provided default value is returned. Or the empty string if there is no default. Attempting to distinguish between empty and missing variable is not portable. So this function won't let you. An environment variable with an empty name is always consdered unset.

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The documentation for this class was generated from the following files:

• impl/environment.h
• impl/environment.cpp