libstddjb
libskarnet
skalibs
Software
skarnet.org

The skalibs/envalloc.h header

The following functions are declared in the skalibs/env.h header, and implemented in the libskarnet.a or libskarnet.so library.

General information

envalloc.h is a supplement of env.h header that lets one use genallocs of char const * instead of fixed-size char const *[].

Functions

int envalloc_uniq (genalloc *v, char delim)
Removes strings in the v that share the same prefix up to the first delim character. For instance, if delim is =, duplicate environment variables are removed. Returns the number of removed entries on success, -1 (and sets errno) on failure.

int envalloc_0 (genalloc *v)
Appends a null pointer to v. Returns 1 on sucess, 0 (and sets errno) on failure.

envalloc_make and envalloc_merge work exactly like their env.h counterparts.