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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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diff --git a/lib/cvtdec0.c b/lib/cvtdec0.c
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+/**
+** @file cvtdec0.c
+**
+** @author Numerous CSCI-452 classes
+**
+** @brief C implementations of common library functions
+*/
+
+#ifndef CVTDEC0_SRC_INC
+#define CVTDEC0_SRC_INC
+
+#include <common.h>
+
+#include <lib.h>
+
+/**
+** cvtdec0(buf,value) - local support routine for cvtdec()
+**
+** convert a 32-bit unsigned integer 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
+*/
+char *cvtdec0( char *buf, int value ) {
+ int quotient;
+
+ quotient = value / 10;
+ if( quotient < 0 ) {
+ quotient = 214748364;
+ value = 8;
+ }
+ if( quotient != 0 ) {
+ buf = cvtdec0( buf, quotient );
+ }
+ *buf++ = value % 10 + '0';
+ return buf;
+}
+
+#endif