From: W. Trevor King <wking@drexel.edu>
Date: Sun, 24 Oct 2010 21:14:41 +0000 (-0400)
Subject: Extend src/sorting/main.c to also read from stdin.
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=2fad529502cd8990686d1a924477505b6888a4a6;p=parallel_computing.git

Extend src/sorting/main.c to also read from stdin.
---

diff --git a/src/sorting/main.c b/src/sorting/main.c
index 824e8c2..43fa55e 100644
--- a/src/sorting/main.c
+++ b/src/sorting/main.c
@@ -47,7 +47,9 @@ int read_data(const char *file_name, int *pList_size, double **pList)
 	double x;
 
 	// open the file
-	if ((fp = fopen(file_name, "r")) == NULL) {
+	if (strcmp("-", file_name) == 0) {
+		fp = stdin;
+	} else if ((fp = fopen(file_name, "r")) == NULL) {
 		fprintf(stderr, "error in opening data file %s\n", file_name);
 		return EXIT_FAILURE;
 	}
@@ -71,7 +73,8 @@ int read_data(const char *file_name, int *pList_size, double **pList)
 	}
 
 	// close the file
-	fclose(fp);
+	if (fp != stdin)
+		fclose(fp);
 	return EXIT_SUCCESS;
 }