C process control: Difference between revisions

Revision as of 20:46, 23 April 2012

Revision as of 01:47, 26 April 2012

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! rowspan=4 | Terminating <br>a program

| {{anchor|abort}}<code>[http://en.cppreference.com/w/c/program/{{man|sh|abort abort]|SUS||inline}}</code>

| causes abnormal program termination (without cleaning up)

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| {{anchor|exit}}<code>[http://en.cppreference.com/w/c/program/{{man|sh|exit exit]|SUS||inline}}</code>

| causes normal program termination with cleaning up

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| {{anchor|_Exit}}<code>[http://en.cppreference.com/w/c/program/{{man|sh|_Exit _Exit]|SUS||inline}}</code>

| causes normal program termination without cleaning up ([[C99]])

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| {{anchor|atexit}}<code>[http://en.cppreference.com/w/c/program/{{man|sh|atexit atexit]|SUS||inline}}</code>

| registers a function to be called on exit() invocation

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! rowspan=2 | Communicating with<br>the environment

| {{anchor|getenv}}<code>[http://en.cppreference.com/w/c/program/{{man|sh|getenv getenv]|SUS||inline}}</code>

| accesses the list of the environment variables

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| {{anchor|system}}<code>[http://en.cppreference.com/w/c/program/{{man|sh|system system]|SUS||inline}}</code>

| calls the host environment's command processor

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