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process.c
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process.c
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#include "matrix.h"
char *read_line(FILE *fp) {
size_t size = MEMSIZ * sizeof(char);
char *buffer = allocate(size);
char ch = fgetc(fp);
int pos = 0;
while (ch != EOF && ch != '\n') {
buffer[pos++] = ch;
// Dynamically reallocate memory where required
if (((pos+1)*sizeof(char)) == size) {
size *= 2;
buffer = reallocate(buffer, size);
}
ch = fgetc(fp);
}
buffer[pos] = '\0';
return buffer;
}
enum VAR_TYPE read_mat_type(FILE *fp) {
char* buffer = read_line(fp);
enum VAR_TYPE type;
if (strcmp(buffer, "int") == 0) {
type = TYPE_INT;
} else if (strcmp(buffer, "float") == 0) {
type = TYPE_FLOAT;
} else {
fprintf(stderr, "matrix: invalid matrix data type '%s'\n", buffer);
exit(EXIT_FAILURE);
}
free(buffer);
buffer = NULL;
return type;
}
int read_mat_dim(FILE *fp) {
char* buffer = read_line(fp);
int len = strlen(buffer);
for (int i = 0; i < len; i++) {
if (!isdigit(buffer[i])) {
fprintf(stderr, "matrix: invalid matrix row/column value '%s'\n", buffer);
exit(EXIT_FAILURE);
}
}
int dim = atoi(buffer);
free(buffer);
buffer = NULL;
return dim;
}
enum VAR_TYPE numeric_type(char *val) {
int len = strlen(val);
bool decimal = false; // Ensure we only see 1 decimal if float value
for (int i = 0; i < len; i++) {
if (isdigit(val[i])) {
continue;
} else if (val[i] == '.' && !decimal) {
decimal = true;
continue;
} else {
return INVALID;
}
}
return decimal ? TYPE_FLOAT : TYPE_INT;
}