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dynamic-string: Make ds_chomp() return true if it removed a character.

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This will be used in an upcoming commit.

Signed-off-by: Ben Pfaff <blp@ovn.org>
Acked-by: Jarno Rajahalme <jarno@ovn.org>
This commit is contained in:
Ben Pfaff 2016-02-09 20:54:03 -08:00
parent 250bd94d1e
commit 29100ef2ba
2 changed files with 7 additions and 4 deletions
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7
lib/dynamic-string.c
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2016 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -446,10 +446,13 @@ ds_last(const struct ds *ds)
return ds->length > 0 ? (unsigned char) ds->string[ds->length - 1] : EOF;
}
void
bool
ds_chomp(struct ds *ds, int c)
{
if (ds->length > 0 && ds->string[ds->length - 1] == (char) c) {
ds->string[--ds->length] = '\0';
return true;
} else {
return false;
}
}

4
lib/dynamic-string.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2015 Nicira, Inc.
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2015, 2016 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -73,7 +73,7 @@ void ds_destroy(struct ds *);
void ds_swap(struct ds *, struct ds *);
int ds_last(const struct ds *);
void ds_chomp(struct ds *, int c);
bool ds_chomp(struct ds *, int c);
/* Inline functions. */