aboutsummaryrefslogtreecommitdiff
path: root/src
diff options
context:
space:
mode:
authorRichard <q@1bpm.net>2021-03-03 01:00:03 +0000
committerRichard <q@1bpm.net>2021-03-03 01:00:03 +0000
commit425c881b86435d756f09f82dd5c3ba48fe64cf66 (patch)
tree55a13e4cf23aadf57c8207a9bcacc5775e3e5b67 /src
downloadcsound-nstrexists-425c881b86435d756f09f82dd5c3ba48fe64cf66.tar.gz
csound-nstrexists-425c881b86435d756f09f82dd5c3ba48fe64cf66.tar.bz2
csound-nstrexists-425c881b86435d756f09f82dd5c3ba48fe64cf66.zip
initial
Diffstat (limited to 'src')
-rw-r--r--src/opcodes.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/src/opcodes.c b/src/opcodes.c
new file mode 100644
index 0000000..5bc30ef
--- /dev/null
+++ b/src/opcodes.c
@@ -0,0 +1,49 @@
+/*
+ opcodes.cpp
+ Copyright (C) 2021 Richard Knight
+
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 3 of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public License
+ along with this program; if not, write to the Free Software Foundation,
+ Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ */
+
+
+#include "csdl.h"
+
+// struct for numeric opcode
+typedef struct _nstrexists_t {
+ OPDS h;
+ MYFLT *out;
+ MYFLT *in;
+} nstrexists_t;
+
+
+// numeric opcode
+int nstrexists(CSOUND *csound, nstrexists_t *p) {
+ if (NULL != csound->GetInstrument(csound, (int)*p->in, NULL)) {
+ *(p->out) = FL(1);
+ } else {
+ *(p->out) = FL(0);
+ }
+ return OK;
+}
+
+
+static OENTRY localops[] = {
+ {"nstrexists", sizeof(nstrexists_t), 0, 1, "i", "i", (SUBR) nstrexists, NULL, NULL},
+ {"nstrexists.k", sizeof(nstrexists_t), 0, 3, "k", "k", (SUBR) nstrexists, (SUBR) nstrexists, NULL},
+};
+
+LINKAGE