Hello!
I hope this code is not too long. I am the beginner and modify the code. When I compile it, there are some error messages.
In function 'main';
warning:comparison between pointer and integer

Before I modify the code. I find I would get more than integer and negative value from the data file. ex: 134.56 (in data file) ---> 34.56 (output)
-99.99 (in data file) ---> 99.99 (output)

Could anyone help?
=====================================================
// soilmoisturecode.c :To get the soil moisture data
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

#ifndef _LEAPYR
#define LEAPYR(y) (!((y)%400) || (!((y)%4) && ((y)%100)))
#endif

/**********************************************
This is also a comment and is not used by the program
**********************************************/
int Columns[] = {15, 15, 11, 0};
int daysinmonth[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
int main (int argc, char *argv[])
{
/**********************************************************************
Declare variables
**********************************************************************/
FILE *inFile; /* Input file */
FILE *outFile; /* Output file */
char inFilename[100+1]; /* Name of input file */
char outFilename[100+1]; /* Name of output file */
int temp;
int year, month;
char string[11];
char Datestr[11];
char tempstr[201];
char* star="****";
# char yearmonth;

float data[4][31][24][18]= {7777.0};
for (int i=0;i<4;i++){
for (int j=0;j<31;j++){
for (int k=0;k<24;k++){
for (int l=0;l<18;l++){
data[i][j][k][l]= 7777.0;
}
}
}
}
int Table, t, h, col;

/** Check for command-line Options **/
if(argc!=4) {
fprintf(stderr, "%s:<Input File Name> <Year - yy> <Month-mm>\n", argv[0]);
exit(1);
}

/** Assign command-line options to variables **/
strcpy(inFilename, argv[1]);
year = atoi(argv[2]);
month = atoi(argv[3]);
sprintf(Datestr, "%02d%02d", year, month);

/**cloumns checks**/
# char yearmonth = 'year''month'
if( yearmonth < '3012' || yearmonth >= '9912'){
Columns[2]=11;
else{
Columns[2]=15;
}

/**LEAPAR checking **/
if(LEAPYR(year)){
daysinmonth[1]=29;
}
else{
daysinmonth[1]=28;
}
fprintf(stdout, "date = %s\n", Datestr);

/* Open input file */
if (!(inFile = fopen(inFilename, "r")))
{
fprintf(stderr, "Cannot open file: %s\n", inFilename);
exit(0);
}

/* Open output file*/
if (!(outFile = fopen("outFilename.txt", "w")))
{
fprintf(stderr, "Cannot open file: %s\n", outFilename);
exit(0);
}

Table =0;
h =0;
t =0;
/* Start reading the file to identify where the actual data begins by matching the first 10 characters of the line with the start date of the data file. */

while(fgets(string, 5, inFile)) {
fprintf(stdout,"cc1 = %s\n",string);
if (strcmp(string, star) == 0){
Table++;
fgets(tempstr, 200, inFile);
fgets(string, 5, inFile);
fprintf(stdout,"xx1! Table = %s\n", tempstr);
fprintf(stdout,"xx2! Table = %s\n", string);
fprintf(stdout,"xx3! Table = %d\n", Table);
}
fprintf(stdout,"cc2 = %s\n", string);

if(strcmp(string, Datestr) == 0) {
fprintf(stdout,"Data found! Table = %d\n", Table);

char tempd[2];
char temph[2];
int day;
int hour;
fgets(tempd, 3, inFile);
fgets(temph, 3, inFile);
fprintf(stdout,"1Data found! Day = %s\n", tempd);
fprintf(stdout,"1Data found! Hour = %s\n", temph);
day = atoi(tempd);
hour = atoi(temph);

fprintf(stdout,"2Data found! Day = %d\n", day);
fprintf(stdout,"2Data found! Hour = %d\n", hour);

fgets(tempstr, 5, inFile);
fprintf(stdout,"cc15! Table = %s\n", tempstr);

for(col=0; col< Columns[Table-1]; col++) {
fgets(tempd, 3, inFile);
fscanf(inFile,"%f",&data[Table-1][day-1][hour][col]);
if(Table==3){
fprintf(stdout,"cc25! Table = %.2f\n", data[Table-1][day-1][hour][col]);
}

}
if(Table==3)
printf("\n");
fgets(tempstr, 200, inFile);
fprintf(stdout,"cc16! Table = %s\n", tempstr);

if (Table>3)
break;
}else{
fgets(tempstr, 200, inFile);
fprintf(stdout,"cc26! Table = %s\n", tempstr);
}
}

fprintf(stdout,"Start Output!\n");

for(t=0; t<daysinmonth[month-1]; t++){
for(h=0; h<24; h++){
fprintf(outFile, "%02d %02d %02d %02d % .2f % .2f % .2f % .2f % .2f % .2f % .2f % .2f\n",year,month,t+1,h, data[1][t][h][0],data[1][t][h][4],data[1][t][h][8],data[1][t][h][12],data[2][t][h][0],data[2][t][h][4],data[2][t][h][8],data[2][t][h][12]);
}
}
fprintf(stdout,"Finish Output");

return 0;
}

When the compiler gives you that error message, it also gives you a line number. Would you care to tell us which line of source code triggered the warning? Please don't give us the line number; instead, just post the actual line of code.

dear friend. This is my first time to post. About that programming. I would compile it. But the question is I wouldn't get the right output. ftp://ftp.wcc.nrcs.usda.gov/data/sca...036_200110.txt.

How is that data relevant?????!!!!!!
Are you saying that it compiled successfully but did not give the right results?
Please post something SHORT which describes what it did vs. what it was supposed to do.

I've tried to compile the source code that was originally posted. There are grievous (and obvious) syntax errors in it. There's no way it could have run.