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| author | jan.nijtmans <nijtmans@users.sourceforge.net> | 2017-04-12 12:00:11 (GMT) |
|---|---|---|
| committer | jan.nijtmans <nijtmans@users.sourceforge.net> | 2017-04-12 12:00:11 (GMT) |
| commit | ece45e7fb6469e3ee3ad49f168f8711fb36f93ce (patch) | |
| tree | db4a77927de2a4d6c6cf2bc672ebda4098b9b1a0 /generic/tclEnv.c | |
| parent | 6f3388528ef453d29fbddba3f5a054d2f5268207 (diff) | |
| parent | 473bfc0f18451046035f638732a609fc86d5a0aa (diff) | |
| download | tcl-initsubsystems.zip tcl-initsubsystems.tar.gz tcl-initsubsystems.tar.bz2 | |
merge trunkinitsubsystems
Diffstat (limited to 'generic/tclEnv.c')
| -rw-r--r-- | generic/tclEnv.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/generic/tclEnv.c b/generic/tclEnv.c index 2cb240d..66ddb57 100644 --- a/generic/tclEnv.c +++ b/generic/tclEnv.c @@ -551,7 +551,8 @@ TclGetEnv( * array. * * Results: - * Always returns NULL to indicate success. + * Returns NULL to indicate success, or an error-message if the array + * element being handled doesn't exist. * * Side effects: * Environment variable changes get propagated. If the whole "env" array @@ -609,8 +610,7 @@ EnvTraceProc( const char *value = TclGetEnv(name2, &valueString); if (value == NULL) { - Tcl_UnsetVar2(interp, name1, name2, 0); - return NULL; + return (char *) "no such variable"; } Tcl_SetVar2(interp, name1, name2, value, 0); Tcl_DStringFree(&valueString); |