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authorFreya Murphy <freya@freyacat.org>2025-03-25 17:36:52 -0400
committerFreya Murphy <freya@freyacat.org>2025-03-25 17:38:22 -0400
commit6af21e6a4f2251e71353562d5df7f376fdffc270 (patch)
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Diffstat (limited to 'lib/cvtdec.c')
-rw-r--r--lib/cvtdec.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/lib/cvtdec.c b/lib/cvtdec.c
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+/**
+** @file cvtdec.c
+**
+** @author Numerous CSCI-452 classes
+**
+** @brief C implementations of common library functions
+*/
+
+#ifndef CVTDEC_SRC_INC
+#define CVTDEC_SRC_INC
+
+#include <common.h>
+
+#include <lib.h>
+
+/**
+** cvtdec(buf,value)
+**
+** convert a 32-bit signed value into a NUL-terminated character string
+**
+** @param buf Destination buffer
+** @param value Value to convert
+**
+** @return The number of characters placed into the buffer
+** (not including the NUL)
+**
+** NOTE: assumes buf is large enough to hold the resulting string
+*/
+int cvtdec( char *buf, int32_t value ) {
+ char *bp = buf;
+
+ if( value < 0 ) {
+ *bp++ = '-';
+ value = -value;
+ }
+
+ bp = cvtdec0( bp, value );
+ *bp = '\0';
+
+ return( bp - buf );
+}
+
+#endif