update makefile and make a src directory

3 files changed, 153 insertions, 0 deletions

diff --git a/src/melting_range.c b/src/melting_range.c
new file mode 100644
index 0000000..2c89195
--- /dev/null
+++ b/src/melting_range.c
@@ -0,0 +1,58 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+float melting_temperature(char *mer) {
+
+	float a = 0;
+	float c = 0;
+	float g = 0;
+	float t = 0;
+	int i = 0;
+
+	for(i = 0; i < strlen(mer); i++) {
+		switch(mer[i]) {
+			case 'A':
+			a++;
+			break;
+			case 'C':
+			c++;
+			break;
+			case 'G':
+			g++;
+			break;
+			case 'T':
+			t++;
+			break;
+			default:
+			break;
+		}
+	}
+
+	if(strlen(mer) < 13)
+		return  ((a+t) * 2) + ((c+g) * 4);
+	else
+		return 64.9 + 41.0*(g+c-16.4)/(a+t+g+c);
+}
+
+int main(int argc, char **argv){
+
+	if(argc < 3) {
+		printf("please supply the min and max as stdargs");
+		exit(EXIT_FAILURE);
+	}
+	float min = atof(argv[1]);
+	float max = atof(argv[2]);
+	
+	char mer[24] = { 0 };
+	int count = 0;
+
+	while(fscanf(stdin, "%s\t%d\n", &mer, &count) == 2) {
+		float temp = melting_temperature(mer);
+		if( (temp > min) && (temp < max) )
+			printf("%s\t%d\n", mer, count);
+	}
+
+	exit(EXIT_SUCCESS);
+}
diff --git a/src/strstream.c b/src/strstream.c
new file mode 100644
index 0000000..f4a296e
--- /dev/null
+++ b/src/strstream.c
@@ -0,0 +1,52 @@
+// find string in 
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+int main(int argc, char **argv){
+
+	char buffer[BUFSIZ] = { 0 };
+	char *buf, *start;
+	ssize_t len = 0;
+
+	int save_size = 0;
+	int cpy = 0;
+
+	unsigned long long pos = 0;
+	unsigned long long cpy_size = 0; 
+
+	int i = 0;
+
+	// get max argument length
+	for(i = 1; i < argc; i++) {
+		int len = strlen(argv[i]);
+		if(len > save_size)
+			save_size = len;
+	}
+
+	cpy = save_size - 1;
+	cpy_size = BUFSIZ - cpy;
+
+	buf = buffer;
+	start = buf + cpy;
+
+	// copy our first cpy length into the first part of our buffer
+	len = fread(buffer, 1, cpy, stdin);
+	if(len == 0) 
+		exit(EXIT_FAILURE);
+
+	// read into "start" (buf + cpy) from stdin
+	while((len = fread(start, 1, cpy_size, stdin)) != 0) {
+		for(i = 1; i < argc; i++) {
+			char *p = buffer;
+			while((p = strstr(p, argv[i])) != NULL) {
+				printf("%d %llu\n", i - 1, pos + (p - buffer));
+				p++;
+			}
+		}
+		memcpy(buffer, buffer + len, cpy);
+		pos = pos + len;
+	}
+	return 0;
+}
diff --git a/src/strstreamone.c b/src/strstreamone.c
new file mode 100644
index 0000000..68da309
--- /dev/null
+++ b/src/strstreamone.c
@@ -0,0 +1,43 @@
+// find string in 
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+int main(int argc, char **argv){
+
+	char buffer[BUFSIZ] = { 0 };
+	char *buf, *start;
+	ssize_t len = 0;
+
+	int cpy = 0;
+
+	unsigned long long pos = 0;
+	unsigned long long cpy_size = 0; 
+
+	// get max argument length
+	int save_size = strlen(argv[1]);
+
+	cpy = save_size - 1;
+	cpy_size = BUFSIZ - cpy;
+
+	buf = buffer;
+	start = buf + cpy;
+
+	// copy our first cpy length into the first part of our buffer
+	len = fread(buffer, 1, cpy, stdin);
+	if(len == 0) 
+		exit(EXIT_FAILURE);
+
+	// read into "start" (buf + cpy) from stdin
+	while((len = fread(start, 1, cpy_size, stdin)) != 0) {
+		char *p = buffer;
+		while((p = strstr(p, argv[1])) != NULL) {
+			printf("%llu\n", pos + (p - buffer));
+			p++;
+		}
+		memcpy(buffer, buffer + len, cpy);
+		pos = pos + len;
+	}
+	return 0;
+}